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Fix busted Assert for CREATE MATVIEW ... WITH NO DATA.
Commit 874fe3aea
changed the command tag returned for CREATE MATVIEW/CREATE
TABLE AS ... WITH NO DATA, but missed that there was code in spi.c that
expected the command tag to always be "SELECT". Fortunately, the
consequence was only an Assert failure, so this oversight should have no
impact in production builds.
Since this code path was evidently un-exercised, add a regression test.
Per report from Shivam Saxena. Back-patch to 9.3, like the previous commit.
Michael Paquier
Report: <97218716-480B-4527-B5CD-D08D798A0C7B@dresources.com>
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@ -2224,8 +2224,12 @@ _SPI_execute_plan(SPIPlanPtr plan, ParamListInfo paramLI,
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strtoul(completionTag + 7, NULL, 10);
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else
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{
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/* Must be an IF NOT EXISTS that did nothing */
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Assert(ctastmt->if_not_exists);
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/*
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* Must be an IF NOT EXISTS that did nothing, or a
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* CREATE ... WITH NO DATA.
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*/
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Assert(ctastmt->if_not_exists ||
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ctastmt->into->skipData);
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_SPI_current->processed = 0;
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}
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@ -557,3 +557,28 @@ REFRESH MATERIALIZED VIEW mv_foo;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mv_foo;
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DROP OWNED BY user_dw CASCADE;
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DROP ROLE user_dw;
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-- make sure that create WITH NO DATA works via SPI
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BEGIN;
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CREATE FUNCTION mvtest_func()
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RETURNS void AS $$
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BEGIN
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CREATE MATERIALIZED VIEW mvtest1 AS SELECT 1 AS x;
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CREATE MATERIALIZED VIEW mvtest2 AS SELECT 1 AS x WITH NO DATA;
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END;
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$$ LANGUAGE plpgsql;
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SELECT mvtest_func();
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mvtest_func
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-------------
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(1 row)
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SELECT * FROM mvtest1;
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x
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---
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1
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(1 row)
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SELECT * FROM mvtest2;
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ERROR: materialized view "mvtest2" has not been populated
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HINT: Use the REFRESH MATERIALIZED VIEW command.
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ROLLBACK;
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@ -226,3 +226,17 @@ REFRESH MATERIALIZED VIEW mv_foo;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mv_foo;
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DROP OWNED BY user_dw CASCADE;
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DROP ROLE user_dw;
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-- make sure that create WITH NO DATA works via SPI
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BEGIN;
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CREATE FUNCTION mvtest_func()
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RETURNS void AS $$
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BEGIN
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CREATE MATERIALIZED VIEW mvtest1 AS SELECT 1 AS x;
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CREATE MATERIALIZED VIEW mvtest2 AS SELECT 1 AS x WITH NO DATA;
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END;
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$$ LANGUAGE plpgsql;
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SELECT mvtest_func();
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SELECT * FROM mvtest1;
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SELECT * FROM mvtest2;
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ROLLBACK;
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