mirror of https://github.com/citusdata/citus.git
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* test/src/depase_shard_query.c
|
|
*
|
|
* This file contains functions to exercise deparsing of INSERT .. SELECT queries
|
|
* for distributed tables.
|
|
*
|
|
* Copyright (c) 2014-2016, Citus Data, Inc.
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "postgres.h"
|
|
#include "c.h"
|
|
#include "fmgr.h"
|
|
|
|
#include <stddef.h>
|
|
|
|
#include "catalog/pg_type.h"
|
|
#include "distributed/master_protocol.h"
|
|
#include "distributed/citus_ruleutils.h"
|
|
#include "distributed/multi_router_planner.h"
|
|
#include "distributed/test_helper_functions.h" /* IWYU pragma: keep */
|
|
#include "lib/stringinfo.h"
|
|
#include "nodes/makefuncs.h"
|
|
#include "nodes/nodes.h"
|
|
#include "nodes/parsenodes.h"
|
|
#include "nodes/pg_list.h"
|
|
#include "nodes/value.h"
|
|
#include "tcop/tcopprot.h"
|
|
#include "utils/array.h"
|
|
#include "utils/builtins.h"
|
|
#include "utils/palloc.h"
|
|
|
|
|
|
/* declarations for dynamic loading */
|
|
PG_FUNCTION_INFO_V1(deparse_shard_query_test);
|
|
|
|
|
|
Datum
|
|
deparse_shard_query_test(PG_FUNCTION_ARGS)
|
|
{
|
|
text *queryString = PG_GETARG_TEXT_P(0);
|
|
|
|
char *queryStringChar = text_to_cstring(queryString);
|
|
List *parseTreeList = pg_parse_query(queryStringChar);
|
|
ListCell *parseTreeCell = NULL;
|
|
|
|
foreach(parseTreeCell, parseTreeList)
|
|
{
|
|
Node *parsetree = (Node *) lfirst(parseTreeCell);
|
|
ListCell *queryTreeCell = NULL;
|
|
|
|
List *queryTreeList = pg_analyze_and_rewrite(parsetree, queryStringChar,
|
|
NULL, 0);
|
|
|
|
foreach(queryTreeCell, queryTreeList)
|
|
{
|
|
Query *query = lfirst(queryTreeCell);
|
|
StringInfo buffer = makeStringInfo();
|
|
|
|
/* reoreder the target list only for INSERT .. SELECT queries */
|
|
if (InsertSelectIntoDistributedTable(query))
|
|
{
|
|
RangeTblEntry *insertRte = linitial(query->rtable);
|
|
RangeTblEntry *subqueryRte = lsecond(query->rtable);
|
|
|
|
|
|
ReorderInsertSelectTargetLists(query, insertRte, subqueryRte);
|
|
}
|
|
|
|
deparse_shard_query(query, InvalidOid, 0, buffer);
|
|
|
|
elog(INFO, "query: %s", buffer->data);
|
|
}
|
|
}
|
|
|
|
PG_RETURN_VOID();
|
|
}
|