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--source include/have_partition.inc --echo # --echo # test using Index Condition Pushdown for partitioned tables --echo # --echo # Test failure of ICP calls -> don't use ICP (MyISAM does not support --echo # ICP on BLOB indexes) CREATE TABLE t1 (a int PRIMARY KEY, b BLOB, c varchar(16) DEFAULT 'Filler...', INDEX (b(4), a)) ENGINE = MyISAM PARTITION BY HASH (a) PARTITIONS 3; SHOW CREATE TABLE t1; INSERT INTO t1 (a, b) VALUES (1, 0xdeadbeef), (2, "text filler"), (3, 'filler...'), (4, " more filler "), (5, "test text"), (6, "testing..."); ANALYZE TABLE t1; let $query= SELECT a, HEX(b) FROM t1 WHERE b >= 'te' and (a % 2); eval EXPLAIN $query; eval EXPLAIN FORMAT=JSON $query; eval $query; --echo Only MyISAM and InnoDB supports both INDEX and BLOBS... ALTER TABLE t1 ENGINE = InnoDB; ANALYZE TABLE t1; eval EXPLAIN $query; eval EXPLAIN FORMAT=JSON $query; eval $query; DROP TABLE t1;