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MDEV-38099: Assertion failed in st_select_lex::optimize_unflattened_s… #4538

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MDEV-38099: Assertion failed in st_select_lex::optimize_unflattened_s… #4538

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10 changes: 10 additions & 0 deletions mysql-test/main/gis.result
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Original file line number Diff line number Diff line change
Expand Up @@ -5622,3 +5622,13 @@ t
#
# End of 11.6 tests
#
#
# Start of 12.2 tests
#
#
# MDEV-38099: Assertion failed in st_select_lex::optimize_unflattened_subqueries
#
SELECT (WITH cte AS (SELECT st_astext(ST_GeomFromText('POLYGON((1 1,2 2,1 1))'))) SELECT * FROM cte);
(WITH cte AS (SELECT st_astext(ST_GeomFromText('POLYGON((1 1,2 2,1 1))'))) SELECT * FROM cte)
POLYGON((1 1,2 2,1 1))
# End of 12.2 tests
11 changes: 11 additions & 0 deletions mysql-test/main/gis.test
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Expand Up @@ -3623,3 +3623,14 @@ SELECT ST_ISVALID(ST_GEOMFROMTEXT('POLYGON((0 0, 10 0, 10 10, 0 10, 0 0), (15 15
--echo #
--echo # End of 11.6 tests
--echo #

--echo #
--echo # Start of 12.2 tests
--echo #

--echo #
--echo # MDEV-38099: Assertion failed in st_select_lex::optimize_unflattened_subqueries
--echo #
SELECT (WITH cte AS (SELECT st_astext(ST_GeomFromText('POLYGON((1 1,2 2,1 1))'))) SELECT * FROM cte);

--echo # End of 12.2 tests
2 changes: 2 additions & 0 deletions sql/sql_lex.cc
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Expand Up @@ -11130,6 +11130,8 @@ void st_select_lex::register_unit(SELECT_LEX_UNIT *unit,
slave= unit;
unit->master= this;
uncacheable|= unit->uncacheable;
if (master && (unit->uncacheable & UNCACHEABLE_RAND))
master->uncacheable|= UNCACHEABLE_RAND;

for(SELECT_LEX *sel= unit->first_select();sel; sel= sel->next_select())
{
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