int sql_create_env(mvc *m, sql_schema *s) { list *res, *ops; res = sa_list(m->sa); list_append(res, sql_create_arg(m->sa, "name", sql_bind_subtype(m->sa, "varchar", 1024, 0), ARG_OUT)); list_append(res, sql_create_arg(m->sa, "value", sql_bind_subtype(m->sa, "varchar", 2048, 0), ARG_OUT)); /* add function */ ops = sa_list(m->sa); mvc_create_func(m, NULL, s, "env", ops, res, F_UNION, FUNC_LANG_SQL, "sql", "sql_environment", "CREATE FUNCTION env () RETURNS TABLE( name varchar(1024), value varchar(2048)) EXTERNAL NAME sql.sql_environment;", FALSE, FALSE); res = sa_list(m->sa); list_append(res, sql_create_arg(m->sa, "name", sql_bind_subtype(m->sa, "varchar", 1024, 0), ARG_OUT)); /* add function */ ops = sa_list(m->sa); mvc_create_func(m, NULL, s, "var", ops, res, F_UNION, FUNC_LANG_SQL, "sql", "sql_variables", "CREATE FUNCTION var() RETURNS TABLE( name varchar(1024)) EXTERNAL NAME sql.sql_variables;", FALSE, FALSE); return 0; }
static void monet5_create_privileges(ptr _mvc, sql_schema *s) { sql_table *t, *uinfo; mvc *m = (mvc *) _mvc; char *err = NULL; int schema_id = 0; str monetdbuser = "******"; list *res, *ops; /* create the authorisation related tables */ t = mvc_create_table(m, s, "db_user_info", tt_table, 1, SQL_PERSIST, 0, -1); mvc_create_column_(m, t, "name", "varchar", 1024); mvc_create_column_(m, t, "fullname", "varchar", 2048); mvc_create_column_(m, t, "default_schema", "int", 9); uinfo = t; (void) err; res = sa_list(m->sa); list_append(res, sql_create_arg(m->sa, "name", sql_bind_subtype(m->sa, "varchar", 2048, 0), ARG_OUT)); /* add function */ ops = sa_list(m->sa); /* following funcion returns a table (single column) of user names with the approriate scenario (sql) */ mvc_create_func(m, NULL, s, "db_users", ops, res, F_UNION, FUNC_LANG_SQL, "sql", "db_users", "CREATE FUNCTION db_users () RETURNS TABLE( name varchar(2048)) EXTERNAL NAME sql.db_users;", FALSE, FALSE); t = mvc_create_view(m, s, "users", SQL_PERSIST, "SELECT u.\"name\" AS \"name\", " "ui.\"fullname\", ui.\"default_schema\" " "FROM db_users() AS u LEFT JOIN " "\"sys\".\"db_user_info\" AS ui " "ON u.\"name\" = ui.\"name\" " ";", 1); mvc_create_column_(m, t, "name", "varchar", 1024); mvc_create_column_(m, t, "fullname", "varchar", 2024); mvc_create_column_(m, t, "default_schema", "int", 9); schema_id = sql_find_schema(m, "sys"); assert(schema_id >= 0); table_funcs.table_insert(m->session->tr, uinfo, monetdbuser, "MonetDB Admin", &schema_id); }
static sql_rel * rel_create_func(mvc *sql, dlist *qname, dlist *params, symbol *res, dlist *ext_name, dlist *body, int type, int lang) { char *fname = qname_table(qname); char *sname = qname_schema(qname); sql_schema *s = NULL; sql_func *f = NULL; sql_subfunc *sf; dnode *n; list *type_list = NULL, *restype = NULL; int instantiate = (sql->emode == m_instantiate); int deps = (sql->emode == m_deps); int create = (!instantiate && !deps); bit vararg = FALSE; char is_table = (res && res->token == SQL_TABLE); char is_aggr = (type == F_AGGR); char is_func = (type != F_PROC); char *F = is_aggr?"AGGREGATE":(is_func?"FUNCTION":"PROCEDURE"); char *KF = type==F_FILT?"FILTER ": type==F_UNION?"UNION ": ""; assert(res || type == F_PROC || type == F_FILT); if (is_table) type = F_UNION; if (STORE_READONLY && create) return sql_error(sql, 06, "schema statements cannot be executed on a readonly database."); if (sname && !(s = mvc_bind_schema(sql, sname))) return sql_error(sql, 02, "3F000!CREATE %s%s: no such schema '%s'", KF, F, sname); if (s == NULL) s = cur_schema(sql); type_list = create_type_list(sql, params, 1); if ((sf = sql_bind_func_(sql->sa, s, fname, type_list, type)) != NULL && create) { if (params) { char *arg_list = NULL; node *n; for (n = type_list->h; n; n = n->next) { char *tpe = subtype2string((sql_subtype *) n->data); if (arg_list) { arg_list = sql_message("%s, %s", arg_list, tpe); _DELETE(tpe); } else { arg_list = tpe; } } (void)sql_error(sql, 02, "CREATE %s%s: name '%s' (%s) already in use", KF, F, fname, arg_list); _DELETE(arg_list); list_destroy(type_list); return NULL; } else { list_destroy(type_list); return sql_error(sql, 02, "CREATE %s%s: name '%s' already in use", KF, F, fname); } } else { list_destroy(type_list); if (create && !schema_privs(sql->role_id, s)) { return sql_error(sql, 02, "CREATE %s%s: insufficient privileges " "for user '%s' in schema '%s'", KF, F, stack_get_string(sql, "current_user"), s->base.name); } else { char *q = QUERY(sql->scanner); list *l = NULL; if (params) { for (n = params->h; n; n = n->next) { dnode *an = n->data.lval->h; sql_add_param(sql, an->data.sval, &an->next->data.typeval); } l = sql->params; if (l && list_length(l) == 1) { sql_arg *a = l->h->data; if (strcmp(a->name, "*") == 0) { l = NULL; vararg = TRUE; } } } if (!l) l = sa_list(sql->sa); if (res) { restype = result_type(sql, res); if (!restype) return sql_error(sql, 01, "CREATE %s%s: failed to get restype", KF, F); } if (body && lang > FUNC_LANG_SQL) { char *lang_body = body->h->data.sval; char *mod = (lang == FUNC_LANG_R)?"rapi": (lang == FUNC_LANG_C)?"capi": (lang == FUNC_LANG_J)?"japi":"unknown"; sql->params = NULL; if (create) { f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, mod, fname, lang_body, FALSE, vararg); } else if (!sf) { return sql_error(sql, 01, "CREATE %s%s: R function %s.%s not bound", KF, F, s->base.name, fname ); } else { sql_func *f = sf->func; f->mod = _STRDUP("rapi"); f->imp = _STRDUP("eval"); if (res && restype) f->res = restype; f->sql = 0; /* native */ f->lang = FUNC_LANG_INT; } } else if (body) { sql_arg *ra = (restype && !is_table)?restype->h->data:NULL; list *b = NULL; sql_schema *old_schema = cur_schema(sql); sql->session->schema = s; b = sequential_block(sql, (ra)?&ra->type:NULL, ra?NULL:restype, body, NULL, is_func); sql->session->schema = old_schema; sql->params = NULL; if (!b) return NULL; /* check if we have a return statement */ if (is_func && restype && !has_return(b)) { return sql_error(sql, 01, "CREATE %s%s: missing return statement", KF, F); } if (!is_func && !restype && has_return(b)) { return sql_error(sql, 01, "CREATE %s%s: procedures " "cannot have return statements", KF, F); } /* in execute mode we instantiate the function */ if (instantiate || deps) { return rel_psm_block(sql->sa, b); } else if (create) { f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, "user", q, q, FALSE, vararg); } } else { char *fmod = qname_module(ext_name); char *fnme = qname_fname(ext_name); if (!fmod || !fnme) return NULL; sql->params = NULL; if (create) { f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, fmod, fnme, q, FALSE, vararg); } else if (!sf) { return sql_error(sql, 01, "CREATE %s%s: external name %s.%s not bound (%s,%s)", KF, F, fmod, fnme, s->base.name, fname ); } else { sql_func *f = sf->func; f->mod = _STRDUP(fmod); f->imp = _STRDUP(fnme); f->sql = 0; /* native */ f->lang = FUNC_LANG_INT; } } } } return rel_create_function(sql->sa, s->base.name, f); }
static sql_rel * rel_create_func(mvc *sql, dlist *qname, dlist *params, symbol *res, dlist *ext_name, dlist *body, int type, int lang, int replace) { const char *fname = qname_table(qname); const char *sname = qname_schema(qname); sql_schema *s = NULL; sql_func *f = NULL; sql_subfunc *sf; dnode *n; list *type_list = NULL, *restype = NULL; int instantiate = (sql->emode == m_instantiate); int deps = (sql->emode == m_deps); int create = (!instantiate && !deps); bit vararg = FALSE; char is_table = (res && res->token == SQL_TABLE); char is_aggr = (type == F_AGGR); char is_func = (type != F_PROC); char is_loader = (type == F_LOADER); char *F = is_loader?"LOADER":(is_aggr?"AGGREGATE":(is_func?"FUNCTION":"PROCEDURE")); char *fn = is_loader?"loader":(is_aggr ? "aggregate" : (is_func ? "function" : "procedure")); char *KF = type==F_FILT?"FILTER ": type==F_UNION?"UNION ": ""; char *kf = type == F_FILT ? "filter " : type == F_UNION ? "union " : ""; assert(res || type == F_PROC || type == F_FILT || type == F_LOADER); if (is_table) type = F_UNION; if (STORE_READONLY && create) return sql_error(sql, 06, SQLSTATE(42000) "Schema statements cannot be executed on a readonly database."); if (sname && !(s = mvc_bind_schema(sql, sname))) return sql_error(sql, 02, SQLSTATE(3F000) "CREATE %s%s: no such schema '%s'", KF, F, sname); if (s == NULL) s = cur_schema(sql); type_list = create_type_list(sql, params, 1); if ((sf = sql_bind_func_(sql->sa, s, fname, type_list, type)) != NULL && create) { if (replace) { sql_func *func = sf->func; int action = 0; if (!mvc_schema_privs(sql, s)) { return sql_error(sql, 02, SQLSTATE(42000) "CREATE OR REPLACE %s%s: access denied for %s to schema ;'%s'", KF, F, stack_get_string(sql, "current_user"), s->base.name); } if (mvc_check_dependency(sql, func->base.id, !IS_PROC(func) ? FUNC_DEPENDENCY : PROC_DEPENDENCY, NULL)) return sql_error(sql, 02, SQLSTATE(42000) "CREATE OR REPLACE %s%s: there are database objects dependent on %s%s %s;", KF, F, kf, fn, func->base.name); if (!func->s) { return sql_error(sql, 02, SQLSTATE(42000) "CREATE OR REPLACE %s%s: not allowed to replace system %s%s %s;", KF, F, kf, fn, func->base.name); } if(mvc_drop_func(sql, s, func, action)) return sql_error(sql, 02, SQLSTATE(HY001) MAL_MALLOC_FAIL); sf = NULL; } else { if (params) { char *arg_list = NULL; node *n; for (n = type_list->h; n; n = n->next) { char *tpe = subtype2string((sql_subtype *) n->data); if (arg_list) { char *t = arg_list; arg_list = sql_message("%s, %s", arg_list, tpe); _DELETE(t); _DELETE(tpe); } else { arg_list = tpe; } } (void)sql_error(sql, 02, SQLSTATE(42000) "CREATE %s%s: name '%s' (%s) already in use", KF, F, fname, arg_list); _DELETE(arg_list); list_destroy(type_list); return NULL; } else { list_destroy(type_list); return sql_error(sql, 02, SQLSTATE(42000) "CREATE %s%s: name '%s' already in use", KF, F, fname); } } } list_destroy(type_list); if (create && !mvc_schema_privs(sql, s)) { return sql_error(sql, 02, SQLSTATE(42000) "CREATE %s%s: insufficient privileges " "for user '%s' in schema '%s'", KF, F, stack_get_string(sql, "current_user"), s->base.name); } else { char *q = QUERY(sql->scanner); list *l = NULL; if (params) { for (n = params->h; n; n = n->next) { dnode *an = n->data.lval->h; sql_add_param(sql, an->data.sval, &an->next->data.typeval); } l = sql->params; if (l && list_length(l) == 1) { sql_arg *a = l->h->data; if (strcmp(a->name, "*") == 0) { l = NULL; vararg = TRUE; } } } if (!l) l = sa_list(sql->sa); if (res) { restype = result_type(sql, res); if (!restype) return sql_error(sql, 01, SQLSTATE(42000) "CREATE %s%s: failed to get restype", KF, F); } if (body && lang > FUNC_LANG_SQL) { char *lang_body = body->h->data.sval; char *mod = (lang == FUNC_LANG_R)?"rapi": (lang == FUNC_LANG_C || lang == FUNC_LANG_CPP)?"capi": (lang == FUNC_LANG_J)?"japi": (lang == FUNC_LANG_PY)?"pyapi": (lang == FUNC_LANG_MAP_PY)?"pyapimap":"unknown"; sql->params = NULL; if (create) { f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, mod, fname, lang_body, (type == F_LOADER)?TRUE:FALSE, vararg, FALSE); } else if (!sf) { return sql_error(sql, 01, SQLSTATE(42000) "CREATE %s%s: R function %s.%s not bound", KF, F, s->base.name, fname ); } /*else { sql_func *f = sf->func; f->mod = _STRDUP("rapi"); f->imp = _STRDUP("eval"); if (res && restype) f->res = restype; f->sql = 0; f->lang = FUNC_LANG_INT; }*/ } else if (body) { sql_arg *ra = (restype && !is_table)?restype->h->data:NULL; list *b = NULL; sql_schema *old_schema = cur_schema(sql); if (create) { /* needed for recursive functions */ q = query_cleaned(q); sql->forward = f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, "user", q, q, FALSE, vararg, FALSE); GDKfree(q); } sql->session->schema = s; b = sequential_block(sql, (ra)?&ra->type:NULL, ra?NULL:restype, body, NULL, is_func); sql->forward = NULL; sql->session->schema = old_schema; sql->params = NULL; if (!b) return NULL; /* check if we have a return statement */ if (is_func && restype && !has_return(b)) { return sql_error(sql, 01, SQLSTATE(42000) "CREATE %s%s: missing return statement", KF, F); } if (!is_func && !restype && has_return(b)) { return sql_error(sql, 01, SQLSTATE(42000) "CREATE %s%s: procedures " "cannot have return statements", KF, F); } /* in execute mode we instantiate the function */ if (instantiate || deps) { return rel_psm_block(sql->sa, b); } } else { char *fmod = qname_module(ext_name); char *fnme = qname_fname(ext_name); if (!fmod || !fnme) return NULL; sql->params = NULL; if (create) { q = query_cleaned(q); f = mvc_create_func(sql, sql->sa, s, fname, l, restype, type, lang, fmod, fnme, q, FALSE, vararg, FALSE); GDKfree(q); } else if (!sf) { return sql_error(sql, 01, SQLSTATE(42000) "CREATE %s%s: external name %s.%s not bound (%s.%s)", KF, F, fmod, fnme, s->base.name, fname ); } else { sql_func *f = sf->func; if (!f->mod || strcmp(f->mod, fmod)) f->mod = _STRDUP(fmod); if (!f->imp || strcmp(f->imp, fnme)) f->imp = (f->sa)?sa_strdup(f->sa, fnme):_STRDUP(fnme); if(!f->mod || !f->imp) { _DELETE(f->mod); _DELETE(f->imp); return sql_error(sql, 02, SQLSTATE(HY001) "CREATE %s%s: could not allocate space", KF, F); } f->sql = 0; /* native */ f->lang = FUNC_LANG_INT; } } } return rel_create_function(sql->sa, s->base.name, f); }