mirror of https://github.com/citusdata/citus.git
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* test/src/deparse_function_query.c
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*
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* This file contains functions to exercise deparsing of
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* CREATE|ALTER|DROP [...] {FUNCTION|PROCEDURE} ...
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* queries
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*
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* Copyright (c) Citus Data, Inc.
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "utils/builtins.h"
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#include "distributed/deparser.h"
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#include "distributed/multi_executor.h"
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/* declarations for dynamic loading */
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PG_FUNCTION_INFO_V1(deparse_test);
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/*
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* deparse_test UDF is a UDF to test deparsing in Citus.
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*
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* This function accepts a query string; parses, qualifies and then deparses it to create
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* a qualified query string.
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*/
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Datum
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deparse_test(PG_FUNCTION_ARGS)
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{
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text *queryStringText = PG_GETARG_TEXT_P(0);
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char *queryStringChar = text_to_cstring(queryStringText);
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Query *query = ParseQueryString(queryStringChar, NULL, 0);
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QualifyTreeNode(query->utilityStmt);
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const char *deparsedQuery = DeparseTreeNode(query->utilityStmt);
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PG_RETURN_TEXT_P(cstring_to_text(deparsedQuery));
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}
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