diff options
Diffstat (limited to 'src/backend/foreign/foreign.c')
-rw-r--r-- | src/backend/foreign/foreign.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/backend/foreign/foreign.c b/src/backend/foreign/foreign.c index 6d548b7d08b..4f5f6ae362b 100644 --- a/src/backend/foreign/foreign.c +++ b/src/backend/foreign/foreign.c @@ -400,6 +400,47 @@ GetFdwRoutineForRelation(Relation relation, bool makecopy) /* + * IsImportableForeignTable - filter table names for IMPORT FOREIGN SCHEMA + * + * Returns TRUE if given table name should be imported according to the + * statement's import filter options. + */ +bool +IsImportableForeignTable(const char *tablename, + ImportForeignSchemaStmt *stmt) +{ + ListCell *lc; + + switch (stmt->list_type) + { + case FDW_IMPORT_SCHEMA_ALL: + return true; + + case FDW_IMPORT_SCHEMA_LIMIT_TO: + foreach(lc, stmt->table_list) + { + RangeVar *rv = (RangeVar *) lfirst(lc); + + if (strcmp(tablename, rv->relname) == 0) + return true; + } + return false; + + case FDW_IMPORT_SCHEMA_EXCEPT: + foreach(lc, stmt->table_list) + { + RangeVar *rv = (RangeVar *) lfirst(lc); + + if (strcmp(tablename, rv->relname) == 0) + return false; + } + return true; + } + return false; /* shouldn't get here */ +} + + +/* * deflist_to_tuplestore - Helper function to convert DefElem list to * tuplestore usable in SRF. */ |