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MDEV-11503 Introduce Type_handler::make_in_vector() and Item_func_in_fix_comparator_compatible_types()
This patch implements the task according to the description: 1. The old code from Item_func_in::fix_length_and_dec() was decomposed into smaller methods: - all_items_are_consts() - compatible_types_scalar_bisection_possible() - compatible_types_row_bisection_possible() - fix_in_vector() - fix_for_scalar_comparison_using_bisection() - fix_for_scalar_comparison_using_cmp_items() - fix_for_row_comparison_using_bisection() - fix_for_row_comparison_using_cmp_items() The data type dependend pieces where moved as methods to Type_handler. 2. Splits in_datetime into separate: - in_datetime, for DATETIME and DATE, - in_time, for TIME to make the code more symmetric across data types. Additionally: - Adds a test func_debug.test to see which calculation strategy (bisect or no bisect) is chosen to handle IN with various arguments. - Adds a new helper method (to avoid duplicate code): cmp_item_rows::prepare_comparators() - Changes the propotype for cmp_item_row::alloc_comparators(), to avoid duplicate code, and to use less current_thd. - Changes "friend" sections in cmp_item_row and in_row from an exact Item_func_in method to the entire class Item_func_in, as their internals are now needed in multiple Item_func_in methods. - Added more comments (e.g. on bisection, on the problem reported in MDEV-11511)
This commit is contained in:
Alexander Barkov
370
mysql-test/t/func_debug.test
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370
mysql-test/t/func_debug.test
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@@ -0,0 +1,370 @@
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--source include/have_debug.inc
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SET SESSION debug_dbug="+d,Item_func_in";
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--echo # Constant predicant, compatible types, bisect
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SELECT 1 IN (1,2);
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SELECT 1 IN (1,2,NULL);
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SELECT 1 NOT IN (1,2);
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SELECT 1 NOT IN (1,2,NULL);
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SELECT 1.0 IN (1.0,2.0);
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SELECT 1.0 IN (1.0,2.0,NULL);
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SELECT 1.0 NOT IN (1.0,2.0);
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SELECT 1.0 NOT IN (1.0,2.0,NULL);
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SELECT 1e0 IN (1e0,2e0);
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SELECT 1e0 IN (1e0,2e0,NULL);
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SELECT 1e0 NOT IN (1e0,2e0);
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SELECT 1e0 NOT IN (1e0,2e0,NULL);
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SELECT 'a' IN ('a','b');
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SELECT 'a' IN ('a','b',NULL);
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SELECT 'a' NOT IN ('a','b');
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SELECT 'a' NOT IN ('a','b',NULL);
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SELECT TIMESTAMP'2001-01-01 10:20:30' IN ('2001-01-01 10:20:30','2001-02-02 10:20:30');
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SELECT TIMESTAMP'2001-01-01 10:20:30' IN ('2001-01-01 10:20:30','2001-02-02 10:20:30',NULL);
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SELECT TIMESTAMP'2001-01-01 10:20:30' NOT IN ('2001-01-01 10:20:30','2001-02-02 10:20:30');
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SELECT TIMESTAMP'2001-01-01 10:20:30' NOT IN ('2001-01-01 10:20:30','2001-02-02 10:20:30',NULL);
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SELECT TIME'10:20:30' IN ('10:20:30','10:20:30');
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SELECT TIME'10:20:30' IN ('10:20:30','10:20:30',NULL);
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SELECT TIME'10:20:30' NOT IN ('10:20:30','10:20:30');
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SELECT TIME'10:20:30' NOT IN ('10:20:30','10:20:30',NULL);
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SELECT DATE'2001-01-01' IN ('2001-01-01','2001-02-02');
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SELECT DATE'2001-01-01' IN ('2001-01-01','2001-02-02',NULL);
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SELECT DATE'2001-01-01' NOT IN ('2001-01-01','2001-02-02');
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SELECT DATE'2001-01-01' NOT IN ('2001-01-01','2001-02-02',NULL);
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--echo # Column predicant, compatible types, bisect
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CREATE TABLE t1 (a INT);
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SELECT a IN (1,2,3) FROM t1;
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SELECT a IN (1,2,3,NULL) FROM t1;
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SELECT a NOT IN (1,2,3) FROM t1;
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SELECT a NOT IN (1,2,3,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DOUBLE);
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SELECT a IN (1e0,2,3.0) FROM t1;
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SELECT a IN (1e0,2,3.0,NULL) FROM t1;
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SELECT a NOT IN (1e0,2,3.0) FROM t1;
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SELECT a NOT IN (1e0,2,3.0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DECIMAL(10,1));
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SELECT a IN (1,2.0,3.0) FROM t1;
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SELECT a IN (1,2.0,3.0,NULL) FROM t1;
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SELECT a NOT IN (1,2.0,3.0) FROM t1;
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SELECT a NOT IN (1,2.0,3.0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a VARCHAR(10));
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SELECT a IN ('a','b','c') FROM t1;
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SELECT a IN ('a','b','c',NULL) FROM t1;
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SELECT a NOT IN ('a','b','c') FROM t1;
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SELECT a NOT IN ('a','b','c',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DATE);
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SELECT a IN ('2001-01-01',DATE'2001-01-02',20010102,20010102.0,20010102e0) FROM t1;
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SELECT a IN ('2001-01-01',DATE'2001-01-02',20010102,20010102.0,20010102e0,NULL) FROM t1;
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SELECT a NOT IN ('2001-01-01',DATE'2001-01-02',20010102,20010102.0,20010102e0) FROM t1;
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SELECT a NOT IN ('2001-01-01',DATE'2001-01-02',20010102,20010102.0,20010102e0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a TIME);
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SELECT a IN ('10:20:30',TIME'10:20:30',102030,102030.0,102030e0) FROM t1;
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SELECT a IN ('10:20:30',TIME'10:20:30',102030,102030.0,102030e0,NULL) FROM t1;
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SELECT a NOT IN ('10:20:30',TIME'10:20:30',102030,102030.0,102030e0) FROM t1;
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SELECT a NOT IN ('10:20:30',TIME'10:20:30',102030,102030.0,102030e0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DATETIME);
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SELECT a IN ('2001-01-01',TIMESTAMP'2001-01-01 10:20:30',DATE'2001-01-01',TIME'10:20:30',20010101102030,20010101102030.0,20010101102030e0) FROM t1;
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SELECT a IN ('2001-01-01',TIMESTAMP'2001-01-01 10:20:30',DATE'2001-01-01',TIME'10:20:30',20010101102030,20010101102030.0,20010101102030e0,NULL) FROM t1;
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SELECT a NOT IN ('2001-01-01',TIMESTAMP'2001-01-01 10:20:30',DATE'2001-01-01',TIME'10:20:30',20010101102030,20010101102030.0,20010101102030e0) FROM t1;
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SELECT a NOT IN ('2001-01-01',TIMESTAMP'2001-01-01 10:20:30',DATE'2001-01-01',TIME'10:20:30',20010101102030,20010101102030.0,20010101102030e0,NULL) FROM t1;
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DROP TABLE t1;
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--echo # Constant predicant, compatible types, no bisect
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--echo # Bisect is not used because of non-constant expressions in the list
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CREATE TABLE t1 (a INT);
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SELECT 1 IN (a,1,2,3) FROM t1;
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SELECT 1 IN (a,1,2,3,NULL) FROM t1;
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SELECT 1 NOT IN (a,1,2,3) FROM t1;
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SELECT 1 NOT IN (a,1,2,3,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DOUBLE);
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SELECT 1 IN (a,1e0,2e0,3e0) FROM t1;
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SELECT 1 IN (a,1e0,2e0,3e0,NULL) FROM t1;
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SELECT 1 NOT IN (a,1e0,2e0,3e0) FROM t1;
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SELECT 1 NOT IN (a,1e0,2e0,3e0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DECIMAL(10,1));
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SELECT 1 IN (a,1.0,2.0,3.0) FROM t1;
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SELECT 1 IN (a,1.0,2.0,3.0,NULL) FROM t1;
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SELECT 1 NOT IN (a,1.0,2.0,3.0) FROM t1;
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SELECT 1 NOT IN (a,1.0,2.0,3.0,NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a VARCHAR(10));
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SELECT 'a' IN (a,'b','c') FROM t1;
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SELECT 'a' IN (a,'b','c',NULL) FROM t1;
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SELECT 'a' NOT IN (a,'b','c') FROM t1;
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SELECT 'a' NOT IN (a,'b','c',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DATE);
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SELECT DATE'2001-01-01' IN (a,'2001-01-01') FROM t1;
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SELECT DATE'2001-01-01' IN (a,'2001-01-01',NULL) FROM t1;
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SELECT DATE'2001-01-01' NOT IN (a,'2001-01-01') FROM t1;
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SELECT DATE'2001-01-01' NOT IN (a,'2001-01-01',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a TIME);
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SELECT TIME'10:20:30' IN (a,'10:20:30') FROM t1;
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SELECT TIME'10:20:30' IN (a,'10:20:30',NULL) FROM t1;
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SELECT TIME'10:20:30' NOT IN (a,'10:20:30') FROM t1;
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SELECT TIME'10:20:30' NOT IN (a,'10:20:30',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DATETIME);
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SELECT TIMESTAMP'2001-01-01 10:20:30' IN (a,TIMESTAMP'2001-01-01 10:20:30') FROM t1;
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SELECT TIMESTAMP'2001-01-01 10:20:30' IN (a,TIMESTAMP'2001-01-01 10:20:30',NULL) FROM t1;
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SELECT TIMESTAMP'2001-01-01 10:20:30' NOT IN (a,TIMESTAMP'2001-01-01 10:20:30') FROM t1;
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SELECT TIMESTAMP'2001-01-01 10:20:30' NOT IN (a,TIMESTAMP'2001-01-01 10:20:30',NULL) FROM t1;
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DROP TABLE t1;
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--echo # Constant predicant, incompatible types, no bisect
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SELECT 1 IN (1,2e0);
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SELECT 1 IN (1,2e0,NULL);
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SELECT 1 NOT IN (1,2e0);
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SELECT 1 NOT IN (1,2e0,NULL);
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SELECT 1.0 IN (1.0,2e0);
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SELECT 1.0 IN (1.0,2e0,NULL);
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SELECT 1.0 NOT IN (1.0,2e0);
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SELECT 1.0 NOT IN (1.0,2e0,NULL);
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SELECT 1e0 IN (1.0,TIME'10:20:30');
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SELECT 1e0 IN (1.0,TIME'10:20:30',NULL);
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SELECT 1e0 NOT IN (1.0,TIME'10:20:30');
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SELECT 1e0 NOT IN (1.0,TIME'10:20:30',NULL);
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SELECT 'a' IN ('a',2);
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SELECT 'a' IN ('a',2,NULL);
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SELECT 'a' NOT IN ('a',2);
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SELECT 'a' NOT IN ('a',2,NULL);
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--echo # Column predicant, incompatible types, no bisect
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CREATE TABLE t1 (a INT);
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SELECT a IN (1,1e0) FROM t1;
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SELECT a IN (1,1e0,NULL) FROM t1;
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SELECT a NOT IN (1,1e0) FROM t1;
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SELECT a NOT IN (1,1e0,NULL) FROM t1;
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SELECT a IN (1,1.0) FROM t1;
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SELECT a IN (1,1.0,NULL) FROM t1;
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SELECT a NOT IN (1,1.0) FROM t1;
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SELECT a NOT IN (1,1.0,NULL) FROM t1;
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SELECT a IN (1,'1') FROM t1;
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SELECT a IN (1,'1',NULL) FROM t1;
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SELECT a NOT IN (1,'1') FROM t1;
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SELECT a NOT IN (1,'1',NULL) FROM t1;
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SELECT a IN (1,TIME'10:20:30') FROM t1;
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SELECT a IN (1,TIME'10:20:30',NULL) FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30') FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DECIMAL(10,0));
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SELECT a IN (1,1e0) FROM t1;
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SELECT a IN (1,1e0,NULL) FROM t1;
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SELECT a NOT IN (1,1e0) FROM t1;
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SELECT a NOT IN (1,1e0,NULL) FROM t1;
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SELECT a IN (1,'1') FROM t1;
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SELECT a IN (1,'1',NULL) FROM t1;
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SELECT a NOT IN (1,'1') FROM t1;
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SELECT a NOT IN (1,'1',NULL) FROM t1;
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SELECT a IN (1,TIME'10:20:30') FROM t1;
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SELECT a IN (1,TIME'10:20:30',NULL) FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30') FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a DOUBLE);
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SELECT a IN (1,TIME'10:20:30') FROM t1;
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SELECT a IN (1,TIME'10:20:30',NULL) FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30') FROM t1;
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SELECT a NOT IN (1,TIME'10:20:30',NULL) FROM t1;
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SELECT a IN (1,DATE'2001-01-01') FROM t1;
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SELECT a IN (1,DATE'2001-01-01',NULL) FROM t1;
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SELECT a NOT IN (1,DATE'2001-01-01') FROM t1;
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SELECT a NOT IN (1,DATE'2001-01-01',NULL) FROM t1;
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SELECT a IN (1,TIMESTAMP'2001-01-01 10:20:30') FROM t1;
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SELECT a IN (1,TIMESTAMP'2001-01-01 10:20:30',NULL) FROM t1;
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SELECT a NOT IN (1,TIMESTAMP'2001-01-01 10:20:30') FROM t1;
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SELECT a NOT IN (1,TIMESTAMP'2001-01-01 10:20:30',NULL) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a VARCHAR(10));
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SELECT a IN ('a',1) FROM t1;
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SELECT a IN ('a',TIME'10:20:30') FROM t1;
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SELECT a NOT IN ('a',1) FROM t1;
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SELECT a NOT IN ('a',TIME'10:20:30') FROM t1;
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DROP TABLE t1;
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#
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# ROW tests
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#
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# ROW has additional conditions when bisect is possible (see item_cmpfunc.h):
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#
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# ((is_top_level_item && not_negated) || // 3
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# (arg0_can_not_be_null && list_does_not_have_nulls) // 4
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# Testing all combinations of the condition components
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#
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# tli - is_top_level_item
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# nneg - not_negated
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# a0nnul - arg0_can_not_be_null
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# lnnul - list_does_not_have_nulls
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# cond3 - condition 3 is true?
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# cond4 - condition 4 is true?
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# bisect - bisect is possible (cond3 orded with cond4)
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# Note:
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# - using an expression in SELECT list makes top_level_item() to be false
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# - using an expression in WHERE clause makes top_leve_item() to be true
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--echo # Not top level, negated: cond3 is false
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# tli nneg a0nnul lnnul cond3 cond4 bisect
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# --- --- ------ ----- ----- ----- ------
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# 0 0 0 0 0 0 0
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# 0 0 0 1 0 0 0
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# 0 0 1 0 0 0 0
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# 0 0 1 1 0 1 1
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# ROW with scalar elements
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CREATE TABLE t1 (a INT);
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SELECT ROW(a,a) NOT IN ((1,1),(2,NULL)) FROM t1;
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SELECT ROW(a,a) NOT IN ((1,1),(2,2)) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL, b INT);
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SELECT ROW(a,a) NOT IN ((1,1),(2,NULL)) FROM t1;
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SELECT ROW(a,a) NOT IN ((1,1),(2,2)) FROM t1;
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DROP TABLE t1;
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# ROW with a nested ROW
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CREATE TABLE t1 (a INT);
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SELECT ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,NULL))) FROM t1;
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SELECT ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,2))) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL);
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SELECT ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,NULL))) FROM t1;
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SELECT ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,2))) FROM t1;
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DROP TABLE t1;
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--echo # Not top level, not negated: cond3 is false
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# tli nneg a0nnul lnnul cond3 cond4 bisect
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# --- --- ------ ----- ----- ----- ------
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# 0 1 0 0 0 0 0
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# 0 1 0 1 0 0 0
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# 0 1 1 0 0 0 0
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# 0 1 1 1 0 1 1
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# ROW with scalar elements
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CREATE TABLE t1 (a INT);
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SELECT ROW(a,a) IN ((1,1),(2,NULL)) FROM t1;
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SELECT ROW(a,a) IN ((1,1),(2,2)) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL);
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SELECT ROW(a,a) IN ((1,1),(2,NULL)) FROM t1;
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SELECT ROW(a,a) IN ((1,1),(2,2)) FROM t1;
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DROP TABLE t1;
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# ROW with a nested ROW
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CREATE TABLE t1 (a INT);
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SELECT ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,NULL))) FROM t1;
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SELECT ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,2))) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL);
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SELECT ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,NULL))) FROM t1;
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SELECT ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,2))) FROM t1;
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DROP TABLE t1;
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--echo # Top level, negated: cond3 is false
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# tli nneg a0nnul lnnul cond3 cond4 bisect
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# --- --- ------ ----- ----- ----- ------
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# 1 0 0 0 0 0 0
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# 1 0 0 1 0 0 0
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# 1 0 1 0 0 0 0
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# 1 0 1 1 0 1 1
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# ROW with scalar elements
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CREATE TABLE t1 (a INT);
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SELECT 1 FROM t1 WHERE ROW(a,a) NOT IN ((1,1),(2,NULL));
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SELECT 1 FROM t1 WHERE ROW(a,a) NOT IN ((1,1),(2,2));
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL);
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SELECT 1 FROM t1 WHERE ROW(a,a) NOT IN ((1,1),(2,NULL));
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SELECT 1 FROM t1 WHERE ROW(a,a) NOT IN ((1,1),(2,2));
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DROP TABLE t1;
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# ROW with a nested ROW
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CREATE TABLE t1 (a INT);
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SELECT 1 FROM t1 WHERE ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,NULL)));
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SELECT 1 FROM t1 WHERE ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,2)));
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL);
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,NULL)));
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) NOT IN ((1,(1,1)),(2,(2,2)));
|
||||
DROP TABLE t1;
|
||||
|
||||
--echo # Top level, not negated: cond3 is true
|
||||
|
||||
# tli nneg a0nnul lnnul cond3 cond4 bisect
|
||||
# --- --- ------ ----- ----- ----- ------
|
||||
# 1 1 0 0 1 0 1
|
||||
# 1 1 0 1 1 1 1
|
||||
# 1 1 1 0 1 0 1
|
||||
# 1 1 1 1 1 1 1
|
||||
|
||||
# ROW with scalar elements
|
||||
CREATE TABLE t1 (a INT);
|
||||
SELECT 1 FROM t1 WHERE ROW(a,a) IN ((1,1),(2,NULL));
|
||||
SELECT 1 FROM t1 WHERE ROW(a,a) IN ((1,1),(2,2));
|
||||
DROP TABLE t1;
|
||||
CREATE TABLE t1 (a INT NOT NULL);
|
||||
SELECT 1 FROM t1 WHERE ROW(a,a) IN ((1,1),(2,NULL));
|
||||
SELECT 1 FROM t1 WHERE ROW(a,a) IN ((1,1),(2,2));
|
||||
DROP TABLE t1;
|
||||
|
||||
# ROW with a nested ROW
|
||||
CREATE TABLE t1 (a INT);
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,NULL)));
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,2)));
|
||||
DROP TABLE t1;
|
||||
CREATE TABLE t1 (a INT NOT NULL);
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,NULL)));
|
||||
SELECT 1 FROM t1 WHERE ROW(a,(a,a)) IN ((1,(1,1)),(2,(2,2)));
|
||||
DROP TABLE t1;
|
||||
|
||||
|
||||
SET SESSION debug_dbug="-d,Item_func_in";
|
||||
Reference in New Issue
Block a user