/* * Module Load Callback */ void _PG_init(void) { DefineCustomBoolVariable("call_graph.enable", "Enables real-time tracking of function calls.", "", &enable_call_graph, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("call_graph.track_table_usage", "Enables tracking of per-callgraph table usage.", "Has no effect if call_graph.enable is not set.", &track_table_usage, false, PGC_USERSET, 0, NULL, NULL, NULL); /* Install our hooks */ next_needs_fmgr_hook = needs_fmgr_hook; needs_fmgr_hook = call_graph_needs_fmgr_hook; next_fmgr_hook = fmgr_hook; fmgr_hook = call_graph_fmgr_hook; }
/* * _PG_init is called when the module is loaded. In this function we save the * previous utility hook, and then install our hook to pre-intercept calls to * the copy command. */ void _PG_init(void) { PreviousExecutorStartHook = ExecutorStart_hook; ExecutorStart_hook = PgPaxosExecutorStart; PreviousProcessUtilityHook = ProcessUtility_hook; ProcessUtility_hook = PgPaxosProcessUtility; DefineCustomBoolVariable("pg_paxos.enabled", "If enabled, pg_paxos handles queries on Paxos tables", NULL, &PaxosEnabled, true, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomStringVariable("pg_paxos.node_id", "Unique node ID to use in Paxos interactions", NULL, &PaxosNodeId, NULL, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable("pg_paxos.consistency_model", "Consistency model to use for reads (strong, optimistic)", NULL, &ReadConsistencyModel, STRONG_CONSISTENCY, consistency_model_options, PGC_USERSET, 0, NULL, NULL, NULL); RegisterXactCallback(FinishPaxosTransaction, NULL); }
void init_runtime_append_static_data(void) { runtimeappend_path_methods.CustomName = RUNTIME_APPEND_NODE_NAME; runtimeappend_path_methods.PlanCustomPath = create_runtime_append_plan; runtimeappend_plan_methods.CustomName = RUNTIME_APPEND_NODE_NAME; runtimeappend_plan_methods.CreateCustomScanState = runtime_append_create_scan_state; runtimeappend_exec_methods.CustomName = RUNTIME_APPEND_NODE_NAME; runtimeappend_exec_methods.BeginCustomScan = runtime_append_begin; runtimeappend_exec_methods.ExecCustomScan = runtime_append_exec; runtimeappend_exec_methods.EndCustomScan = runtime_append_end; runtimeappend_exec_methods.ReScanCustomScan = runtime_append_rescan; runtimeappend_exec_methods.MarkPosCustomScan = NULL; runtimeappend_exec_methods.RestrPosCustomScan = NULL; runtimeappend_exec_methods.ExplainCustomScan = runtime_append_explain; DefineCustomBoolVariable("pg_pathman.enable_runtimeappend", "Enables the planner's use of " RUNTIME_APPEND_NODE_NAME " custom node.", NULL, &pg_pathman_enable_runtimeappend, true, PGC_USERSET, 0, NULL, NULL, NULL); RegisterCustomScanMethods(&runtimeappend_plan_methods); }
static void pgstrom_init_misc_guc(void) { /* GUC variables according to the device information */ DefineCustomBoolVariable("pg_strom.enabled", "Enables the planner's use of PG-Strom", NULL, &pgstrom_enabled, true, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("pg_strom.perfmon", "Enables the performance monitor of PG-Strom", NULL, &pgstrom_perfmon_enabled, false, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomIntVariable("pg_strom.min_async_chunks", "least number of chunks to be run asynchronously", NULL, &pgstrom_min_async_chunks, 2, 2, INT_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomIntVariable("pg_strom.max_async_chunks", "max number of chunk to be run asynchronously", NULL, &pgstrom_max_async_chunks, 32, pgstrom_min_async_chunks + 1, INT_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); if (pgstrom_max_async_chunks <= pgstrom_min_async_chunks) ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("\"pg_strom.max_async_chunks\" must be larger than \"pg_strom.min_async_chunks\""))); }
void zdb_index_init(void) { RELOPT_KIND_ZDB = add_reloption_kind(); add_string_reloption(RELOPT_KIND_ZDB, "url", "Server URL and port", NULL, validate_url); add_string_reloption(RELOPT_KIND_ZDB, "shadow", "A zombodb index to which this one should shadow", NULL, validate_shadow); add_string_reloption(RELOPT_KIND_ZDB, "options", "Comma-separated list of options to pass to underlying index", NULL, validate_options); add_string_reloption(RELOPT_KIND_ZDB, "preference", "The ?preference value used to Elasticsearch", NULL, validate_preference); add_string_reloption(RELOPT_KIND_ZDB, "refresh_interval", "Frequency in which Elasticsearch indexes are refreshed. Related to ES' index.refresh_interval setting", "-1", validate_refresh_interval); add_int_reloption(RELOPT_KIND_ZDB, "shards", "The number of shared for the index", 5, 1, ZDB_MAX_SHARDS); add_int_reloption(RELOPT_KIND_ZDB, "replicas", "The default number of replicas for the index", 1, 0, ZDB_MAX_REPLICAS); add_int_reloption(RELOPT_KIND_ZDB, "bulk_concurrency", "The maximum number of concurrent _bulk API requests", 12, 1, ZDB_MAX_BULK_CONCURRENCY); add_int_reloption(RELOPT_KIND_ZDB, "batch_size", "The size in bytes of batch calls to the _bulk API", 1024 * 1024 * 8, 1024, (INT32_MAX/2)-1); add_string_reloption(RELOPT_KIND_ZDB, "field_lists", "field=[field1, field2, field3], other=[field4,field5]", NULL, validate_field_lists); add_bool_reloption(RELOPT_KIND_ZDB, "ignore_visibility", "Should queries that require visibility information actually use it?", false); add_bool_reloption(RELOPT_KIND_ZDB, "always_resolve_joins", "Should queries that link to other indexes always resolve the links", false); DefineCustomBoolVariable("zombodb.batch_mode", "Batch INSERT/UPDATE/COPY changes until transaction commit", NULL, &zdb_batch_mode_guc, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("zombodb.ignore_visibility", "If true, visibility information will be ignored for all queries", NULL, &zdb_ignore_visibility_guc, false, PGC_USERSET, 0, NULL, NULL, NULL); }
/* * initialization of debugging facilities */ void pgstrom_init_debug(void) { /* turn on/off kernel device debug support */ DefineCustomBoolVariable("pg_strom.kernel_debug", "turn on/off kernel debug support", NULL, &pgstrom_kernel_debug, false, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); }
void _PG_init(void) { PLpgSQL_plugin ** var_ptr = (PLpgSQL_plugin **) find_rendezvous_variable( "PLpgSQL_plugin" ); /* Be sure we do initialization only once (should be redundant now) */ static bool inited = false; if (inited) return; *var_ptr = &plugin_funcs; #if PG_VERSION_NUM >= 90100 DefineCustomBoolVariable("plpgsql.enable_lint", "when is true, then plpgsql_lint is active", NULL, &plpgsql_lint_enable, true, PGC_SUSET, 0, NULL, NULL, NULL); #else DefineCustomBoolVariable("plpgsql.enable_lint", "when is true, then plpgsql_lint is active", NULL, &plpgsql_lint_enable, true, PGC_SUSET, 0, NULL, NULL); #endif inited = true; }
/* Declare the parameters */ static void DefineGUCs(void) { DefineCustomBoolVariable("pg_hibernator.enabled", "Enable/disable automatic hibernation.", NULL, &guc_enabled, guc_enabled, PGC_SIGHUP, 0, NULL, NULL, NULL); DefineCustomBoolVariable("pg_hibernator.parallel", "Enable/disable restoring databases in parallel.", NULL, &guc_parallel_enabled, guc_parallel_enabled, PGC_SIGHUP, 0, NULL, NULL, NULL); DefineCustomStringVariable("pg_hibernator.default_database", "Database to connect to, by default.", "Postgres Hibernator will connect to this database when saving buffers, and when reading blocks of global objects.", &guc_default_database, guc_default_database, PGC_POSTMASTER, 0, NULL, NULL, NULL); }
/* Define custom GUC */ static void load_parameters() { DefineCustomBoolVariable("saio", "Use SA for query planning.", NULL, &enable_saio, true, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomIntVariable("saio_threshold", "Sets the threshold of FROM items beyond which SAIO is used.", NULL, &saio_threshold, 14, 1, INT_MAX, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomRealVariable("saio_seed", "SA random seed.", NULL, &saio_seed, 0.0, 0.0, 1.0, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomIntVariable("saio_equilibrium_factor", "SA scaling factor for reaching equilibirum.", NULL, &saio_equilibrium_factor, 16, 1, INT_MAX, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomRealVariable("saio_initial_temperature_factor", "SA scaling factor for initial temperature.", NULL, &saio_initial_temperature_factor, 2.0, 0.0, 10.0, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomRealVariable("saio_temperature_reduction_factor", "SA temperature reduction factor.", NULL, &saio_temperature_reduction_factor, 0.9, 0.0, 1.0, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); DefineCustomIntVariable("saio_moves_before_frozen", "SA moves before considering system frozen.", NULL, &saio_moves_before_frozen, 4, 1, INT_MAX, PGC_USERSET, 0, SAIO_GUC_HOOK_VALUES); }
void plperl_init(void) { if (!plperl_firstcall) return; DefineCustomBoolVariable( "plperl.use_strict", "If true, will compile trusted and untrusted perl code in strict mode", NULL, &plperl_use_strict, PGC_USERSET, NULL, NULL); EmitWarningsOnPlaceholders("plperl"); plperl_init_interp(); plperl_firstcall = 0; }
void _PG_init(void) { /* Define custom GUC variables. */ DefineCustomBoolVariable("dblink_plus.use_xa", "Parameter used for dblink_plus.", NULL, &use_xa, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); EmitWarningsOnPlaceholders("dblink_plus"); srandom((unsigned int) time(NULL)); }
/* * _PG_init() - library load-time initialization * * DO NOT make this static nor change its name! */ void _PG_init(void) { /* Be sure we do initialization only once (should be redundant now) */ static bool inited = false; if (inited) return; pg_bindtextdomain(TEXTDOMAIN); DefineCustomEnumVariable("plpgsql.variable_conflict", gettext_noop("Sets handling of conflicts between PL/pgSQL variable names and table column names."), NULL, &plpgsql_variable_conflict, PLPGSQL_RESOLVE_ERROR, variable_conflict_options, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("plpgsql.print_strict_params", gettext_noop("Print information about parameters in the DETAIL part of the error messages generated on INTO .. STRICT failures."), NULL, &plpgsql_print_strict_params, false, PGC_USERSET, 0, NULL, NULL, NULL); EmitWarningsOnPlaceholders("plpgsql"); plpgsql_HashTableInit(); RegisterXactCallback(plpgsql_xact_cb, NULL); RegisterSubXactCallback(plpgsql_subxact_cb, NULL); /* Set up a rendezvous point with optional instrumentation plugin */ plugin_ptr = (PLpgSQL_plugin **) find_rendezvous_variable("PLpgSQL_plugin"); inited = true; }
/* * Module load callback */ void _PG_init(void) { if (zhprs_scws) return; zhprs_init(); DefineCustomBoolVariable("zhparser.dict_in_memory", "load dicts into memory", NULL, &zhprs_dict_in_memory, false, PGC_BACKEND, 0, NULL, zhprs_assign_dict_in_memory, NULL); DefineCustomStringVariable("zhparser.charset", "charset", NULL, &zhprs_charset, "utf8", PGC_USERSET, 0, zhprs_check_charset, zhprs_assign_charset, NULL); DefineCustomStringVariable("zhparser.rules", "rules to load", NULL, &zhprs_rules, "rules.utf8.ini", PGC_USERSET, 0, zhprs_check_rules, zhprs_assign_rules, NULL); DefineCustomStringVariable("zhparser.extra_dicts", "extra dicts files to load", NULL, &zhprs_extra_dicts, "dict.utf8.xdb", PGC_USERSET, 0, zhprs_check_extra_dicts, zhprs_assign_extra_dicts, NULL); DefineCustomBoolVariable("zhparser.punctuation_ignore", "set if zhparser ignores the puncuation", "set if zhparser ignores the puncuation, except \\r and \\n", &zhprs_punctuation_ignore, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("zhparser.seg_with_duality", "segment words with duality", NULL, &zhprs_seg_with_duality, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomStringVariable("zhparser.multi_mode", "set multi mode", "short for prefer short words\n" "duality for prefer duality\n" "zmain prefer most important element" "zall prefer prefer all element", &zhprs_multi_mode_string, NULL, PGC_USERSET, 0, zhprs_check_multi_mode, zhprs_assign_multi_mode, NULL); }
/* * Module load callback */ void _PG_init(void) { /* Define custom GUC variables. */ DefineCustomIntVariable("auto_explain.log_min_duration", "Sets the minimum execution time above which plans will be logged.", "Zero prints all plans. -1 turns this feature off.", &auto_explain_log_min_duration, -1, -1, INT_MAX / 1000, PGC_SUSET, GUC_UNIT_MS, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_analyze", "Use EXPLAIN ANALYZE for plan logging.", NULL, &auto_explain_log_analyze, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_verbose", "Use EXPLAIN VERBOSE for plan logging.", NULL, &auto_explain_log_verbose, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_buffers", "Log buffers usage.", NULL, &auto_explain_log_buffers, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_triggers", "Include trigger statistics in plans.", "This has no effect unless log_analyze is also set.", &auto_explain_log_triggers, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable("auto_explain.log_format", "EXPLAIN format to be used for plan logging.", NULL, &auto_explain_log_format, EXPLAIN_FORMAT_TEXT, format_options, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_nested_statements", "Log nested statements.", NULL, &auto_explain_log_nested_statements, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_timing", "Collect timing data, not just row counts.", NULL, &auto_explain_log_timing, true, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomRealVariable("auto_explain.sample_rate", "Fraction of queries to process.", NULL, &auto_explain_sample_rate, 1.0, 0.0, 1.0, PGC_SUSET, 0, NULL, NULL, NULL); EmitWarningsOnPlaceholders("auto_explain"); /* Install hooks. */ prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = explain_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = explain_ExecutorRun; prev_ExecutorFinish = ExecutorFinish_hook; ExecutorFinish_hook = explain_ExecutorFinish; prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = explain_ExecutorEnd; }
/* * Module load callback */ void _PG_init(void) { /* can be preloaded only from postgresql.conf */ if (!process_shared_preload_libraries_in_progress) return; /* Define custom GUC variables. */ DefineCustomStringVariable("query_recorder.filename", "Base filename to write the recorded queries.", NULL, &base_filename, false, PGC_BACKEND, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif NULL, NULL); DefineCustomIntVariable("query_recorder.max_files", "How many files will be rotated.", NULL, &max_files, 100, 1, 1000, PGC_BACKEND, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif NULL, NULL); DefineCustomIntVariable("query_recorder.size_limit", "File size limit (will create multiple files .000 - .999)", NULL, &max_file_size, 1024*1024*1024/BLCKSZ, /* 1GB */ 1024*1024/BLCKSZ, 1024*1024*1024/BLCKSZ, /* 1MB - 1GB */ PGC_BACKEND, GUC_UNIT_BLOCKS, #if (PG_VERSION_NUM >= 90100) NULL, #endif NULL, NULL); DefineCustomIntVariable("query_recorder.buffer_size", "Size of the buffer used to collect queries.", NULL, &buffer_size, 1024*1024/BLCKSZ, /* 1MB */ 1, 16*1024*1024/BLCKSZ, /* 1 block - 16MB */ PGC_BACKEND, GUC_UNIT_BLOCKS, #if (PG_VERSION_NUM >= 90100) NULL, #endif NULL, NULL); /* Define custom GUC variables. */ DefineCustomBoolVariable("query_recorder.normalize", "Replace line breaks and carriage returns with spaces.", NULL, &normalize, false, PGC_BACKEND, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_enabled, NULL); /* Define custom GUC variables. */ DefineCustomBoolVariable("query_recorder.enabled", "Enable or disable recording of queries.", NULL, &enabled, false, PGC_SUSET, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_enabled, (GucShowHook)(&show_enabled)); EmitWarningsOnPlaceholders("query_recorder"); /* * Request additional shared resources. (These are no-ops if we're not in * the postmaster process.) We'll allocate or attach to the shared * resources in pg_record_shmem_startup(). */ RequestAddinShmemSpace(SEGMENT_SIZE); RequestAddinLWLocks(1); /* Install hooks. */ prev_shmem_startup_hook = shmem_startup_hook; shmem_startup_hook = pg_record_shmem_startup; prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = explain_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = explain_ExecutorRun; #if (PG_VERSION_NUM >= 90100) prev_ExecutorFinish = ExecutorFinish_hook; ExecutorFinish_hook = explain_ExecutorFinish; #endif prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = explain_ExecutorEnd; prev_ProcessUtility = ProcessUtility_hook; ProcessUtility_hook = pg_record_ProcessUtility; }
static void registerGUCOptions(void) { char pathbuf[MAXPGPATH]; DefineCustomStringVariable( "pljava.libjvm_location", "Path to the libjvm (.so, .dll, etc.) file in Java's jre/lib area", NULL, /* extended description */ &libjvmlocation, #if PG_VERSION_NUM >= 80400 "libjvm", #endif PGC_SUSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 check_libjvm_location, #endif assign_libjvm_location, NULL); /* show hook */ DefineCustomStringVariable( "pljava.vmoptions", "Options sent to the JVM when it is created", NULL, /* extended description */ &vmoptions, #if PG_VERSION_NUM >= 80400 NULL, /* boot value */ #endif PGC_SUSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 check_vmoptions, #endif assign_vmoptions, NULL); /* show hook */ DefineCustomStringVariable( "pljava.classpath", "Classpath used by the JVM", NULL, /* extended description */ &classpath, #if PG_VERSION_NUM >= 80400 InstallHelper_defaultClassPath(pathbuf), /* boot value */ #endif PGC_SUSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 check_classpath, #endif assign_classpath, NULL); /* show hook */ DefineCustomBoolVariable( "pljava.debug", "Stop the backend to attach a debugger", NULL, /* extended description */ &pljavaDebug, #if PG_VERSION_NUM >= 80400 false, /* boot value */ #endif PGC_USERSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 NULL, /* check hook */ #endif NULL, NULL); /* assign hook, show hook */ DefineCustomIntVariable( "pljava.statement_cache_size", "Size of the prepared statement MRU cache", NULL, /* extended description */ &statementCacheSize, #if PG_VERSION_NUM >= 80400 11, /* boot value */ #endif 0, 512, /* min, max values */ PGC_USERSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 NULL, /* check hook */ #endif NULL, NULL); /* assign hook, show hook */ DefineCustomBoolVariable( "pljava.release_lingering_savepoints", "If true, lingering savepoints will be released on function exit. " "If false, they will be rolled back", NULL, /* extended description */ &pljavaReleaseLingeringSavepoints, #if PG_VERSION_NUM >= 80400 false, /* boot value */ #endif PGC_USERSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 NULL, /* check hook */ #endif NULL, NULL); /* assign hook, show hook */ DefineCustomBoolVariable( "pljava.enable", "If off, the Java virtual machine will not be started until set on.", "This is mostly of use on PostgreSQL versions < 9.2, where option " "settings changed before LOADing PL/Java may be rejected, so they must " "be made after LOAD, but before the virtual machine is started.", &pljavaEnabled, #if PG_VERSION_NUM >= 90200 true, /* boot value */ #elif PG_VERSION_NUM >= 80400 false, /* boot value */ #endif PGC_USERSET, #if PG_VERSION_NUM >= 80400 0, /* flags */ #endif #if PG_VERSION_NUM >= 90100 check_enabled, /* check hook */ #endif assign_enabled, NULL); /* show hook */ DefineCustomStringVariable( "pljava.implementors", "Implementor names recognized in deployment descriptors", NULL, /* extended description */ &implementors, #if PG_VERSION_NUM >= 80400 "postgresql", /* boot value */ #endif PGC_USERSET, #if PG_VERSION_NUM >= 80400 GUC_LIST_INPUT | GUC_LIST_QUOTE, #endif #if PG_VERSION_NUM >= 90100 NULL, /* check hook */ #endif NULL, NULL); /* assign hook, show hook */ EmitWarningsOnPlaceholders("pljava"); }
/* * Module load callback */ void _PG_init(void) { if (pgscws_scws) return; pgscws_init(); DefineCustomBoolVariable("scws.dict_in_memory", "load dicts into memory", NULL, &pgscws_dict_in_memory, false, PGC_BACKEND, 0, NULL, pgscws_assign_dict_in_memory, NULL); DefineCustomStringVariable("scws.charset", "charset", NULL, &pgscws_charset, "utf8", PGC_USERSET, 0, pgscws_check_charset, pgscws_assign_charset, NULL); DefineCustomStringVariable("scws.rules", "rules to load", NULL, &pgscws_rules, "rules.utf8.ini", PGC_USERSET, 0, pgscws_check_rules, pgscws_assign_rules, NULL); DefineCustomStringVariable("scws.extra_dicts", "extra dicts files to load", NULL, &pgscws_extra_dicts, "dict.utf8.xdb", PGC_USERSET, 0, pgscws_check_extra_dicts, pgscws_assign_extra_dicts, NULL); DefineCustomBoolVariable("scws.punctuation_ignore", "set if scws ignores the puncuation", "set if scws ignores the puncuation, except \\r and \\n", &pgscws_punctuation_ignore, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("scws.seg_with_duality", "segment words with duality", NULL, &pgscws_seg_with_duality, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomStringVariable("scws.multi_mode", "set multi mode", "\"none\" for none\n" "\"short\" for prefer short words\n" "\"duality\" for prefer duality\n" "\"zmain\" prefer most important element" "\"zall\" prefer prefer all element", &pgscws_multi_mode_string, "none", PGC_USERSET, 0, pgscws_check_multi_mode, pgscws_assign_multi_mode, NULL); }
/* * _PG_init() - library load-time initialization * * DO NOT make this static nor change its name! * * Init the module, all we have to do here is getting our GUC */ void _PG_init(void) { char sharepath[MAXPGPATH]; char *default_control_directory; get_share_path(my_exec_path, sharepath); default_control_directory = (char *) palloc(MAXPGPATH); snprintf(default_control_directory, MAXPGPATH, "%s/extension", sharepath); DefineCustomStringVariable("pginstall.archive_dir", "Path where to download extension archives.", "", &pginstall_archive_dir, "", PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomStringVariable("pginstall.control_dir", "Path where to install extension control files.", "", &pginstall_control_dir, default_control_directory, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomStringVariable("pginstall.extension_dir", "Path where to install extension contents.", "", &pginstall_extension_dir, "", PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomStringVariable("pginstall.repository", "Extension Repository URL", "", &pginstall_repository, "", PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomStringVariable("pginstall.custom_path", "Directory where to load custom scripts from", "", &pginstall_custom_path, "", PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomStringVariable("pginstall.whitelist", "List of extensions that are whitelisted", "Separated by comma", &pginstall_whitelist, "", PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("pginstall.sudo", "Allow privilege escalation to install extensions", "", &pginstall_sudo, false, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("pginstall.serve_from_archive_dir", "Avoid contacting the repository server when the needed archive file is already available locally", "", &pginstall_serve_from_archive_dir, false, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); prev_ProcessUtility = ProcessUtility_hook; ProcessUtility_hook = pginstall_ProcessUtility; }
/* Module load callback */ void _PG_init(void) { char *env_postgis_gdal_enabled_drivers = NULL; char *boot_postgis_gdal_enabled_drivers = NULL; char *env_postgis_enable_outdb_rasters = NULL; bool boot_postgis_enable_outdb_rasters = false; /* use POSTGIS_GDAL_ENABLED_DRIVERS to set the bootValue of GUC postgis.gdal_enabled_drivers */ env_postgis_gdal_enabled_drivers = getenv("POSTGIS_GDAL_ENABLED_DRIVERS"); if (env_postgis_gdal_enabled_drivers == NULL) { boot_postgis_gdal_enabled_drivers = palloc( sizeof(char) * (strlen(GDAL_DISABLE_ALL) + 1) ); sprintf(boot_postgis_gdal_enabled_drivers, "%s", GDAL_DISABLE_ALL); } else { boot_postgis_gdal_enabled_drivers = rtpg_trim( env_postgis_gdal_enabled_drivers ); } POSTGIS_RT_DEBUGF( 4, "boot_postgis_gdal_enabled_drivers = %s", boot_postgis_gdal_enabled_drivers ); /* use POSTGIS_ENABLE_OUTDB_RASTERS to set the bootValue of GUC postgis.enable_outdb_rasters */ env_postgis_enable_outdb_rasters = getenv("POSTGIS_ENABLE_OUTDB_RASTERS"); if (env_postgis_enable_outdb_rasters != NULL) { char *env = rtpg_trim(env_postgis_enable_outdb_rasters); /* out of memory */ if (env == NULL) { elog(ERROR, "_PG_init: Cannot process environmental variable: POSTGIS_ENABLE_OUTDB_RASTERS"); return; } if (strcmp(env, "1") == 0) boot_postgis_enable_outdb_rasters = true; pfree(env); } POSTGIS_RT_DEBUGF( 4, "boot_postgis_enable_outdb_rasters = %s", boot_postgis_enable_outdb_rasters ? "TRUE" : "FALSE" ); /* Install liblwgeom handlers */ pg_install_lwgeom_handlers(); /* TODO: Install raster callbacks (see rt_init_allocators)??? */ /* Define custom GUC variables. */ DefineCustomStringVariable( "postgis.gdal_datapath", /* name */ "Path to GDAL data files.", /* short_desc */ "Physical path to directory containing GDAL data files (sets the GDAL_DATA config option).", /* long_desc */ &gdal_datapath, /* valueAddr */ NULL, /* bootValue */ PGC_SUSET, /* GucContext context */ 0, /* int flags */ #if POSTGIS_PGSQL_VERSION >= 91 NULL, /* GucStringCheckHook check_hook */ #endif rtpg_assignHookGDALDataPath, /* GucStringAssignHook assign_hook */ NULL /* GucShowHook show_hook */ ); DefineCustomStringVariable( "postgis.gdal_enabled_drivers", /* name */ "Enabled GDAL drivers.", /* short_desc */ "List of enabled GDAL drivers by short name. To enable/disable all drivers, use 'ENABLE_ALL' or 'DISABLE_ALL' (sets the GDAL_SKIP config option).", /* long_desc */ &gdal_enabled_drivers, /* valueAddr */ boot_postgis_gdal_enabled_drivers, /* bootValue */ PGC_SUSET, /* GucContext context */ 0, /* int flags */ #if POSTGIS_PGSQL_VERSION >= 91 NULL, /* GucStringCheckHook check_hook */ #endif rtpg_assignHookGDALEnabledDrivers, /* GucStringAssignHook assign_hook */ NULL /* GucShowHook show_hook */ ); DefineCustomBoolVariable( "postgis.enable_outdb_rasters", /* name */ "Enable Out-DB raster bands", /* short_desc */ "If true, rasters can access data located outside the database", /* long_desc */ &enable_outdb_rasters, /* valueAddr */ boot_postgis_enable_outdb_rasters, /* bootValue */ PGC_SUSET, /* GucContext context */ 0, /* int flags */ #if POSTGIS_PGSQL_VERSION >= 91 NULL, /* GucStringCheckHook check_hook */ #endif rtpg_assignHookEnableOutDBRasters, /* GucBoolAssignHook assign_hook */ NULL /* GucShowHook show_hook */ ); /* free memory allocations */ pfree(boot_postgis_gdal_enabled_drivers); }
/* * Module load callback */ void _PG_init(void) { /* Define custom GUC variables. */ DefineCustomIntVariable("auto_explain.log_min_duration", "Sets the minimum execution time above which plans will be logged.", "Zero prints all plans. -1 turns this feature off.", &auto_explain_log_min_duration, -1, -1, INT_MAX / 1000, PGC_SUSET, GUC_UNIT_MS, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_analyze", "Use EXPLAIN ANALYZE for plan logging.", NULL, &auto_explain_log_analyze, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_verbose", "Use EXPLAIN VERBOSE for plan logging.", NULL, &auto_explain_log_verbose, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_buffers", "Log buffers usage.", NULL, &auto_explain_log_buffers, false, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable("auto_explain.log_format", "EXPLAIN format to be used for plan logging.", NULL, &auto_explain_log_format, EXPLAIN_FORMAT_TEXT, format_options, PGC_SUSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable("auto_explain.log_nested_statements", "Log nested statements.", NULL, &auto_explain_log_nested_statements, false, PGC_SUSET, 0, NULL, NULL, NULL); EmitWarningsOnPlaceholders("auto_explain"); /* Install hooks. */ prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = explain_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = explain_ExecutorRun; prev_ExecutorFinish = ExecutorFinish_hook; ExecutorFinish_hook = explain_ExecutorFinish; prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = explain_ExecutorEnd; }
/* * _PG_init * Entry point loading hooks */ void _PG_init(void) { /* Set up GUCs */ DefineCustomStringVariable("redislog.host", "Redis server host name or IP address.", NULL, &Redislog_host, "127.0.0.1", PGC_SIGHUP, GUC_NOT_IN_SAMPLE | GUC_SUPERUSER_ONLY, NULL, &guc_on_assign_reopen_string, NULL); DefineCustomIntVariable("redislog.port", "Redis server port number.", NULL, &Redislog_port, 6379, 0, 65535, PGC_SIGHUP, GUC_NOT_IN_SAMPLE | GUC_SUPERUSER_ONLY, NULL, &guc_on_assign_reopen_int, NULL); DefineCustomIntVariable("redislog.connection_timeout", "Redis server connection timeout.", NULL, &Redislog_timeout, 1000, 1, INT_MAX, PGC_SIGHUP, GUC_NOT_IN_SAMPLE | GUC_SUPERUSER_ONLY | GUC_UNIT_MS, NULL, NULL, NULL); DefineCustomStringVariable("redislog.key", "Redis server key name.", NULL, &Redislog_key, "postgres", PGC_SIGHUP, GUC_NOT_IN_SAMPLE | GUC_SUPERUSER_ONLY, NULL, NULL, NULL); DefineCustomEnumVariable("redislog.min_error_statement", "Controls which SQL statements that cause an error condition are " "recorded in the server log.", "Each level includes all the levels that follow it. The later " "the level, the fewer messages are sent.", &Redislog_min_error_statement, log_min_error_statement, server_message_level_options, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomEnumVariable("redislog.min_messages", "Set the message levels that are logged.", "Each level includes all the levels that follow it. The higher " "the level, the fewer messages are sent.", &Redislog_min_messages, WARNING, server_message_level_options, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("redislog.ship_to_redis_only", "Send log messages to Redis only.", "If set to true, send log messages to Redis only and skip " "journaling them into the main PostgreSQL log. Use the " "PostgreSQL main logger facility for fallback purposes only, " "in case no Redis service is available. " "By default it is set to false.", &Redislog_ship_to_redis_only, FALSE, PGC_SUSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); prev_log_hook = emit_log_hook; emit_log_hook = redis_log_hook; EmitWarningsOnPlaceholders("redislog"); }
static void pgstrom_init_misc_guc(void) { /* GUC variables according to the device information */ DefineCustomBoolVariable("pg_strom.enabled", "Enables the planner's use of PG-Strom", NULL, &pgstrom_enabled, true, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("pg_strom.perfmon", "Enables the performance monitor of PG-Strom", NULL, &pgstrom_perfmon_enabled, false, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomBoolVariable("pg_strom.show_device_kernel", "Enables to show device kernel on EXPLAIN", NULL, &pgstrom_show_device_kernel, false, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomIntVariable("pg_strom.chunk_size", "default size of pgstrom_data_store in MB", NULL, &pgstrom_chunk_size, 15, 4, 128, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomIntVariable("pg_strom.min_async_chunks", "least number of chunks to be run asynchronously", NULL, &pgstrom_min_async_chunks, 2, 2, INT_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomIntVariable("pg_strom.max_async_chunks", "max number of chunk to be run asynchronously", NULL, &pgstrom_max_async_chunks, 3, pgstrom_min_async_chunks + 1, INT_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); if (pgstrom_max_async_chunks <= pgstrom_min_async_chunks) ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE), errmsg("\"pg_strom.max_async_chunks\" must be larger than \"pg_strom.min_async_chunks\""))); DefineCustomRealVariable("gpu_setup_cost", "Cost to setup GPU device to run", NULL, &pgstrom_gpu_setup_cost, 500 * DEFAULT_SEQ_PAGE_COST, 0, DBL_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomRealVariable("gpu_operator_cost", "Cost of processing each operators by GPU", NULL, &pgstrom_gpu_operator_cost, DEFAULT_CPU_OPERATOR_COST / 100.0, 0, DBL_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); DefineCustomRealVariable("gpu_tuple_cost", "Cost of processing each tuple for GPU", NULL, &pgstrom_gpu_tuple_cost, DEFAULT_CPU_TUPLE_COST / 32, 0, DBL_MAX, PGC_USERSET, GUC_NOT_IN_SAMPLE, NULL, NULL, NULL); }
/* * Module load callback * * Holds GUC variables that cause some behavior changes in similarity functions * */ void _PG_init(void) { static const struct config_enum_entry pgs_tokenizer_options[] = { {"alnum", PGS_UNIT_ALNUM, false}, {"gram", PGS_UNIT_GRAM, false}, {"word", PGS_UNIT_WORD, false}, {"camelcase", PGS_UNIT_CAMELCASE, false}, {NULL, 0, false} }; static const struct config_enum_entry pgs_gram_options[] = { {"gram", PGS_UNIT_GRAM, false}, {NULL, 0, false} }; /* Block */ DefineCustomEnumVariable("pg_similarity.block_tokenizer", "Sets the tokenizer for Block similarity function.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_block_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.block_threshold", "Sets the threshold used by the Block similarity function.", "Valid range is 0.0 .. 1.0.", &pgs_block_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.block_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_block_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Cosine */ DefineCustomEnumVariable("pg_similarity.cosine_tokenizer", "Sets the tokenizer for Cosine similarity function.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_cosine_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.cosine_threshold", "Sets the threshold used by the Cosine similarity function.", "Valid range is 0.0 .. 1.0.", &pgs_cosine_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.cosine_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_cosine_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Dice */ DefineCustomEnumVariable("pg_similarity.dice_tokenizer", "Sets the tokenizer for Dice similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_dice_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.dice_threshold", "Sets the threshold used by the Dice similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_dice_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.dice_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_dice_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Euclidean */ DefineCustomEnumVariable("pg_similarity.euclidean_tokenizer", "Sets the tokenizer for Euclidean similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_euclidean_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.euclidean_threshold", "Sets the threshold used by the Euclidean similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_euclidean_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.euclidean_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_euclidean_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Hamming */ DefineCustomRealVariable("pg_similarity.hamming_threshold", "Sets the threshold used by the Block similarity metric.", "Valid range is 0.0 .. 1.0.", &pgs_hamming_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.hamming_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_hamming_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Jaccard */ DefineCustomEnumVariable("pg_similarity.jaccard_tokenizer", "Sets the tokenizer for Jaccard similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_jaccard_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.jaccard_threshold", "Sets the threshold used by the Jaccard similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_jaccard_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.jaccard_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_jaccard_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Jaro */ DefineCustomRealVariable("pg_similarity.jaro_threshold", "Sets the threshold used by the Jaro similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_jaro_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.jaro_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_jaro_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Jaro-Winkler */ DefineCustomRealVariable("pg_similarity.jarowinkler_threshold", "Sets the threshold used by the Jaro similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_jarowinkler_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.jarowinkler_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_jarowinkler_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Levenshtein */ DefineCustomRealVariable("pg_similarity.levenshtein_threshold", "Sets the threshold used by the Levenshtein similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_levenshtein_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.levenshtein_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_levenshtein_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Matching Coefficient */ DefineCustomEnumVariable("pg_similarity.matching_tokenizer", "Sets the tokenizer for Matching Coefficient similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_matching_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.matching_threshold", "Sets the threshold used by the Matching Coefficient similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_matching_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.matching_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_matching_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Monge-Elkan */ DefineCustomEnumVariable("pg_similarity.mongeelkan_tokenizer", "Sets the tokenizer for Monge-Elkan similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_mongeelkan_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.mongeelkan_threshold", "Sets the threshold used by the Monge-Elkan similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_mongeelkan_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.mongeelkan_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_mongeelkan_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Needleman-Wunsch */ DefineCustomRealVariable("pg_similarity.nw_threshold", "Sets the threshold used by the Needleman-Wunsch similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_nw_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.nw_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_nw_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.nw_gap_penalty", "Sets the gap penalty used by the Needleman-Wunsch similarity measure.", NULL, &pgs_nw_gap_penalty, -5.0, LONG_MIN, LONG_MAX, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Overlap Coefficient */ DefineCustomEnumVariable("pg_similarity.overlap_tokenizer", "Sets the tokenizer for Overlap Coefficient similarity measure.", "Valid values are \"alnum\", \"gram\", \"word\", or \"camelcase\".", &pgs_overlap_tokenizer, PGS_UNIT_ALNUM, pgs_tokenizer_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.overlap_threshold", "Sets the threshold used by the Overlap Coefficient similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_overlap_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.overlap_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_overlap_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Q-Gram */ DefineCustomEnumVariable("pg_similarity.qgram_tokenizer", "Sets the tokenizer for Q-Gram similarity function.", "Valid value is \"gram\".", &pgs_qgram_tokenizer, PGS_UNIT_GRAM, pgs_gram_options, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomRealVariable("pg_similarity.qgram_threshold", "Sets the threshold used by the Q-Gram similarity function.", "Valid range is 0.0 .. 1.0.", &pgs_qgram_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.qgram_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_qgram_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Smith-Waterman */ DefineCustomRealVariable("pg_similarity.sw_threshold", "Sets the threshold used by the Smith-Waterman similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_sw_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.sw_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_sw_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); /* Smith-Waterman-Gotoh */ DefineCustomRealVariable("pg_similarity.swg_threshold", "Sets the threshold used by the Smith-Waterman-Gotoh similarity measure.", "Valid range is 0.0 .. 1.0.", &pgs_swg_threshold, 0.7, 0.0, 1.0, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); DefineCustomBoolVariable("pg_similarity.swg_is_normalized", "Sets if the result value is normalized or not.", NULL, &pgs_swg_is_normalized, true, PGC_USERSET, 0, #if PG_VERSION_NUM >= 90100 NULL, #endif NULL, NULL); }
/* * Module load callback */ void _PG_init(void) { /* */ if (!process_shared_preload_libraries_in_progress) return; /* Define custom GUC variables. */ DefineCustomBoolVariable("query_histogram.dynamic", "Dynamic histogram may be modified on the fly.", NULL, &default_histogram_dynamic, false, PGC_BACKEND, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif NULL, NULL); /* Define custom GUC variables. */ DefineCustomBoolVariable("query_histogram.track_utility", "Selects whether utility commands are tracked.", NULL, &default_histogram_utility, true, PGC_SUSET, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_histogram_track_utility, NULL); DefineCustomIntVariable("query_histogram.bin_count", "Sets the number of bins of the histogram.", "Zero disables collecting the histogram.", &default_histogram_bins, 100, 0, 1000, PGC_SUSET, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_histogram_bins_count_hook, NULL); DefineCustomIntVariable("query_histogram.bin_width", "Sets the width of the histogram bin.", NULL, &default_histogram_step, 100, 1, 1000, PGC_SUSET, GUC_UNIT_MS, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_histogram_bins_width_hook, NULL); DefineCustomIntVariable("query_histogram.sample_pct", "What portion of the queries should be sampled (in percent).", NULL, &default_histogram_sample_pct, 5, 1, 100, PGC_SUSET, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_histogram_sample_hook, NULL); DefineCustomEnumVariable("query_histogram.histogram_type", "Type of the histogram (how the bin width is computed).", NULL, &default_histogram_type, HISTOGRAM_LINEAR, histogram_type_options, PGC_SUSET, 0, #if (PG_VERSION_NUM >= 90100) NULL, #endif &set_histogram_type_hook, NULL); EmitWarningsOnPlaceholders("query_histogram"); /* * Request additional shared resources. (These are no-ops if we're not in * the postmaster process.) We'll allocate or attach to the shared * resources in histogram_shmem_startup(). */ RequestAddinShmemSpace(get_histogram_size()); RequestAddinLWLocks(1); /* Install hooks. */ prev_shmem_startup_hook = shmem_startup_hook; shmem_startup_hook = histogram_shmem_startup; prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = explain_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = explain_ExecutorRun; #if (PG_VERSION_NUM >= 90100) prev_ExecutorFinish = ExecutorFinish_hook; ExecutorFinish_hook = explain_ExecutorFinish; #endif prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = explain_ExecutorEnd; prev_ProcessUtility = ProcessUtility_hook; ProcessUtility_hook = queryhist_ProcessUtility; }
/* * Module load callback */ void _PG_init(void) { /* * In order to create our shared memory area, we have to be loaded via * shared_preload_libraries. If not, fall out without hooking into any of * the main system. (We don't throw error here because it seems useful to * allow the pg_stat_statements functions to be created even when the * module isn't active. The functions must protect themselves against * being called then, however.) */ if (!process_shared_preload_libraries_in_progress) return; /* * Define (or redefine) custom GUC variables. */ DefineCustomIntVariable("pg_stat_statements.max", "Sets the maximum number of statements tracked by pg_stat_statements.", NULL, &pgss_max, 1000, 100, INT_MAX, PGC_POSTMASTER, 0, NULL, NULL); DefineCustomEnumVariable("pg_stat_statements.track", "Selects which statements are tracked by pg_stat_statements.", NULL, &pgss_track, PGSS_TRACK_TOP, track_options, PGC_SUSET, 0, NULL, NULL); DefineCustomBoolVariable("pg_stat_statements.track_utility", "Selects whether utility commands are tracked by pg_stat_statements.", NULL, &pgss_track_utility, true, PGC_SUSET, 0, NULL, NULL); DefineCustomBoolVariable("pg_stat_statements.save", "Save pg_stat_statements statistics across server shutdowns.", NULL, &pgss_save, true, PGC_SIGHUP, 0, NULL, NULL); EmitWarningsOnPlaceholders("pg_stat_statements"); /* * Request additional shared resources. (These are no-ops if we're not in * the postmaster process.) We'll allocate or attach to the shared * resources in pgss_shmem_startup(). */ RequestAddinShmemSpace(pgss_memsize()); RequestAddinLWLocks(1); /* * Install hooks. */ prev_shmem_startup_hook = shmem_startup_hook; shmem_startup_hook = pgss_shmem_startup; prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = pgss_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = pgss_ExecutorRun; prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = pgss_ExecutorEnd; prev_ProcessUtility = ProcessUtility_hook; ProcessUtility_hook = pgss_ProcessUtility; }
/* Register Citus configuration variables. */ static void RegisterCitusConfigVariables(void) { DefineCustomStringVariable( "citus.worker_list_file", gettext_noop("Sets the server's \"worker_list\" configuration file."), NULL, &WorkerListFileName, NULL, PGC_POSTMASTER, GUC_SUPERUSER_ONLY, NULL, NULL, NULL); NormalizeWorkerListPath(); DefineCustomBoolVariable( "citus.binary_master_copy_format", gettext_noop("Use the binary master copy format."), gettext_noop("When enabled, data is copied from workers to the master " "in PostgreSQL's binary serialization format."), &BinaryMasterCopyFormat, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.binary_worker_copy_format", gettext_noop("Use the binary worker copy format."), gettext_noop("When enabled, data is copied from workers to workers " "in PostgreSQL's binary serialization format when " "joining large tables."), &BinaryWorkerCopyFormat, false, PGC_SIGHUP, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.expire_cached_shards", gettext_noop("Enables shard cache expiration if a shard's size on disk has " "changed."), gettext_noop("When appending to an existing shard, old data may still be cached " "on other workers. This configuration entry activates automatic " "expiration, but should not be used with manual updates to shards."), &ExpireCachedShards, false, PGC_SIGHUP, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.subquery_pushdown", gettext_noop("Enables supported subquery pushdown to workers."), NULL, &SubqueryPushdown, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.log_multi_join_order", gettext_noop("Logs the distributed join order to the server log."), gettext_noop("We use this private configuration entry as a debugging aid. " "If enabled, we print the distributed join order."), &LogMultiJoinOrder, false, PGC_USERSET, GUC_NO_SHOW_ALL, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.explain_multi_logical_plan", gettext_noop("Enables Explain to print out distributed logical plans."), gettext_noop("We use this private configuration entry as a debugging aid. " "If enabled, the Explain command prints out the optimized " "logical plan for distributed queries."), &ExplainMultiLogicalPlan, false, PGC_USERSET, GUC_NO_SHOW_ALL, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.explain_multi_physical_plan", gettext_noop("Enables Explain to print out distributed physical plans."), gettext_noop("We use this private configuration entry as a debugging aid. " "If enabled, the Explain command prints out the physical " "plan for distributed queries."), &ExplainMultiPhysicalPlan, false, PGC_USERSET, GUC_NO_SHOW_ALL, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.explain_distributed_queries", gettext_noop("Enables Explain for distributed queries."), gettext_noop("When enabled, the Explain command shows remote and local " "plans when used with a distributed query. It is enabled " "by default, but can be disabled for regression tests."), &ExplainDistributedQueries, true, PGC_USERSET, GUC_NO_SHOW_ALL, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.explain_all_tasks", gettext_noop("Enables showing output for all tasks in Explain."), gettext_noop("The Explain command for distributed queries shows " "the remote plan for a single task by default. When " "this configuration entry is enabled, the plan for " "all tasks is shown, but the Explain takes longer."), &ExplainAllTasks, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.all_modifications_commutative", gettext_noop("Bypasses commutativity checks when enabled"), NULL, &AllModificationsCommutative, false, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomBoolVariable( "citus.enable_ddl_propagation", gettext_noop("Enables propagating DDL statements to worker shards"), NULL, &EnableDDLPropagation, true, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.shard_replication_factor", gettext_noop("Sets the replication factor for shards."), gettext_noop("Shards are replicated across nodes according to this " "replication factor. Note that shards read this " "configuration value at sharded table creation time, " "and later reuse the initially read value."), &ShardReplicationFactor, 2, 1, 100, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.shard_max_size", gettext_noop("Sets the maximum size a shard will grow before it gets split."), gettext_noop("Shards store table and file data. When the source " "file's size for one shard exceeds this configuration " "value, the database ensures that either a new shard " "gets created, or the current one gets split. Note that " "shards read this configuration value at sharded table " "creation time, and later reuse the initially read value."), &ShardMaxSize, 1048576, 256, INT_MAX, /* max allowed size not set to MAX_KILOBYTES on purpose */ PGC_USERSET, GUC_UNIT_KB, NULL, NULL, NULL); DefineCustomIntVariable( "citus.max_worker_nodes_tracked", gettext_noop("Sets the maximum number of worker nodes that are tracked."), gettext_noop("Worker nodes' network locations, their membership and " "health status are tracked in a shared hash table on " "the master node. This configuration value limits the " "size of the hash table, and consequently the maximum " "number of worker nodes that can be tracked."), &MaxWorkerNodesTracked, 2048, 8, INT_MAX, PGC_POSTMASTER, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.remote_task_check_interval", gettext_noop("Sets the frequency at which we check job statuses."), gettext_noop("The master node assigns tasks to workers nodes, and " "then regularly checks with them about each task's " "progress. This configuration value sets the time " "interval between two consequent checks."), &RemoteTaskCheckInterval, 10, 1, REMOTE_NODE_CONNECT_TIMEOUT, PGC_USERSET, GUC_UNIT_MS, NULL, NULL, NULL); DefineCustomIntVariable( "citus.task_tracker_delay", gettext_noop("Task tracker sleep time between task management rounds."), gettext_noop("The task tracker process wakes up regularly, walks over " "all tasks assigned to it, and schedules and executes these " "tasks. Then, the task tracker sleeps for a time period " "before walking over these tasks again. This configuration " "value determines the length of that sleeping period."), &TaskTrackerDelay, 200, 10, 100000, PGC_SIGHUP, GUC_UNIT_MS, NULL, NULL, NULL); DefineCustomIntVariable( "citus.max_assign_task_batch_size", gettext_noop("Sets the maximum number of tasks to assign per round."), gettext_noop("The master node synchronously assigns tasks to workers in " "batches. Bigger batches allow for faster task assignment, " "but it may take longer for all workers to get tasks " "if the number of workers is large. This configuration " "value controls the maximum batch size."), &MaxAssignTaskBatchSize, 64, 1, INT_MAX, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.max_tracked_tasks_per_node", gettext_noop("Sets the maximum number of tracked tasks per node."), gettext_noop("The task tracker processes keeps all assigned tasks in " "a shared hash table, and schedules and executes these " "tasks as appropriate. This configuration value limits " "the size of the hash table, and therefore the maximum " "number of tasks that can be tracked at any given time."), &MaxTrackedTasksPerNode, 1024, 8, INT_MAX, PGC_POSTMASTER, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.max_running_tasks_per_node", gettext_noop("Sets the maximum number of tasks to run concurrently per node."), gettext_noop("The task tracker process schedules and executes the tasks " "assigned to it as appropriate. This configuration value " "sets the maximum number of tasks to execute concurrently " "on one node at any given time."), &MaxRunningTasksPerNode, 8, 1, INT_MAX, PGC_SIGHUP, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.partition_buffer_size", gettext_noop("Sets the buffer size to use for partition operations."), gettext_noop("Worker nodes allow for table data to be repartitioned " "into multiple text files, much like Hadoop's Map " "command. This configuration value sets the buffer size " "to use per partition operation. After the buffer fills " "up, we flush the repartitioned data into text files."), &PartitionBufferSize, 8192, 0, (INT_MAX / 1024), /* result stored in int variable */ PGC_USERSET, GUC_UNIT_KB, NULL, NULL, NULL); DefineCustomIntVariable( "citus.large_table_shard_count", gettext_noop("The shard count threshold over which a table is considered large."), gettext_noop("A distributed table is considered to be large if it has " "more shards than the value specified here. This largeness " "criteria is then used in picking a table join order during " "distributed query planning."), &LargeTableShardCount, 4, 1, 10000, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomIntVariable( "citus.limit_clause_row_fetch_count", gettext_noop("Number of rows to fetch per task for limit clause optimization."), gettext_noop("Select queries get partitioned and executed as smaller " "tasks. In some cases, select queries with limit clauses " "may need to fetch all rows from each task to generate " "results. In those cases, and where an approximation would " "produce meaningful results, this configuration value sets " "the number of rows to fetch from each task."), &LimitClauseRowFetchCount, -1, -1, INT_MAX, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomRealVariable( "citus.count_distinct_error_rate", gettext_noop("Desired error rate when calculating count(distinct) " "approximates using the postgresql-hll extension. " "0.0 disables approximations for count(distinct); 1.0 " "provides no guarantees about the accuracy of results."), NULL, &CountDistinctErrorRate, 0.0, 0.0, 1.0, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable( "citus.multi_shard_commit_protocol", gettext_noop("Sets the commit protocol for commands modifying multiple shards."), gettext_noop("When a failure occurs during commands that modify multiple " "shards (currently, only COPY on distributed tables modifies more " "than one shard), two-phase commit is required to ensure data is " "never lost. Change this setting to '2pc' from its default '1pc' to " "enable 2 PC. You must also set max_prepared_transactions on the " "worker nodes. Recovery from failed 2PCs is currently manual."), &MultiShardCommitProtocol, COMMIT_PROTOCOL_1PC, multi_shard_commit_protocol_options, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable( "citus.task_assignment_policy", gettext_noop("Sets the policy to use when assigning tasks to worker nodes."), gettext_noop("The master node assigns tasks to worker nodes based on shard " "locations. This configuration value specifies the policy to " "use when making these assignments. The greedy policy aims to " "evenly distribute tasks across worker nodes, first-replica just " "assigns tasks in the order shard placements were created, " "and the round-robin policy assigns tasks to worker nodes in " "a round-robin fashion."), &TaskAssignmentPolicy, TASK_ASSIGNMENT_GREEDY, task_assignment_policy_options, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable( "citus.task_executor_type", gettext_noop("Sets the executor type to be used for distributed queries."), gettext_noop("The master node chooses between two different executor types " "when executing a distributed query.The real-time executor is " "optimal for simple key-value lookup queries and queries that " "involve aggregations and/or co-located joins on multiple shards. " "The task-tracker executor is optimal for long-running, complex " "queries that touch thousands of shards and/or that involve table " "repartitioning."), &TaskExecutorType, MULTI_EXECUTOR_REAL_TIME, task_executor_type_options, PGC_USERSET, 0, NULL, NULL, NULL); DefineCustomEnumVariable( "citus.shard_placement_policy", gettext_noop("Sets the policy to use when choosing nodes for shard placement."), gettext_noop("The master node chooses which worker nodes to place new shards " "on. This configuration value specifies the policy to use when " "selecting these nodes. The local-node-first policy places the " "first replica on the client node and chooses others randomly. " "The round-robin policy aims to distribute shards evenly across " "the cluster by selecting nodes in a round-robin fashion." "The random policy picks all workers randomly."), &ShardPlacementPolicy, SHARD_PLACEMENT_ROUND_ROBIN, shard_placement_policy_options, PGC_USERSET, 0, NULL, NULL, NULL); /* warn about config items in the citus namespace that are not registered above */ EmitWarningsOnPlaceholders("citus"); }
/* * Module load callback */ void _PG_init(void) { /* * In order to create our shared memory area, we have to be loaded via * shared_preload_libraries. If not, fall out without hooking into any of * the main system. (We don't throw error here because it seems useful to * allow the query_histogram functions to be created even when the * module isn't active. The functions must protect themselves against * being called then, however.) */ if (!process_shared_preload_libraries_in_progress) return; /* Define custom GUC variables. */ DefineCustomBoolVariable("query_histogram.dynamic", "Dynamic histogram may be modified on the fly.", NULL, &default_histogram_dynamic, false, PGC_BACKEND, 0, NULL, NULL, NULL); /* Define custom GUC variables. */ DefineCustomBoolVariable("query_histogram.track_utility", "Selects whether utility commands are tracked.", NULL, &default_histogram_utility, true, PGC_SUSET, 0, NULL, &set_histogram_track_utility, &show_histogram_track_utility); DefineCustomIntVariable("query_histogram.bin_count", "Sets the number of bins of the histogram.", "Zero disables collecting the histogram.", &default_histogram_bins, 100, 0, 1000, PGC_SUSET, 0, NULL, &set_histogram_bins_count_hook, &show_histogram_bins_count_hook); DefineCustomIntVariable("query_histogram.bin_width", "Sets the width of the histogram bin.", NULL, &default_histogram_step, 100, 1, 1000, PGC_SUSET, GUC_UNIT_MS, NULL, &set_histogram_bins_width_hook, &show_histogram_bins_width_hook); DefineCustomIntVariable("query_histogram.sample_pct", "What portion of the queries should be sampled (in percent).", NULL, &default_histogram_sample_pct, 5, 1, 100, PGC_SUSET, 0, NULL, &set_histogram_sample_hook, &show_histogram_sample_hook); DefineCustomEnumVariable("query_histogram.histogram_type", "Type of the histogram (how the bin width is computed).", NULL, &default_histogram_type, HISTOGRAM_LINEAR, histogram_type_options, PGC_SUSET, 0, NULL, &set_histogram_type_hook, &show_histogram_type_hook); EmitWarningsOnPlaceholders("query_histogram"); /* * Request additional shared resources. (These are no-ops if we're not in * the postmaster process.) We'll allocate or attach to the shared * resources in histogram_shmem_startup(). */ RequestAddinShmemSpace(get_histogram_size()); RequestNamedLWLockTranche("query_histogram", 1); /* Install hooks. */ prev_shmem_startup_hook = shmem_startup_hook; shmem_startup_hook = histogram_shmem_startup; prev_ExecutorStart = ExecutorStart_hook; ExecutorStart_hook = histogram_ExecutorStart; prev_ExecutorRun = ExecutorRun_hook; ExecutorRun_hook = histogram_ExecutorRun; prev_ExecutorFinish = ExecutorFinish_hook; ExecutorFinish_hook = histogram_ExecutorFinish; prev_ExecutorEnd = ExecutorEnd_hook; ExecutorEnd_hook = histogram_ExecutorEnd; prev_ProcessUtility = ProcessUtility_hook; ProcessUtility_hook = queryhist_ProcessUtility; }