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MDEV-26737: Outdated VARIABLE_COMMENT for HISTOGRAM_TYPE in I_S.SYSTEM_VARIABLES

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Fix the description
This commit is contained in:
Sergei Petrunia
2021-10-04 22:37:59 +03:00
parent 943b8fccf9
commit b17f33a04b
4 changed files with 15 additions and 2 deletions
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3
mysql-test/main/mysqld--help.result
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@ -368,7 +368,8 @@ The following specify which files/extra groups are read (specified before remain
Specifies type of the histograms created by ANALYZE. Specifies type of the histograms created by ANALYZE.
Possible values are: SINGLE_PREC_HB - single precision Possible values are: SINGLE_PREC_HB - single precision
height-balanced, DOUBLE_PREC_HB - double precision height-balanced, DOUBLE_PREC_HB - double precision
height-balanced. height-balanced, JSON_HB - height-balanced, stored as
JSON.
--host-cache-size=# How many host names should be cached to avoid resolving. --host-cache-size=# How many host names should be cached to avoid resolving.
(Automatically configured unless set explicitly) (Automatically configured unless set explicitly)
--idle-readonly-transaction-timeout=# --idle-readonly-transaction-timeout=#

6
mysql-test/main/statistics_json.result
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@ -7940,3 +7940,9 @@ test.t1 analyze status OK
SELECT * FROM t1 WHERE f > 'qux'; SELECT * FROM t1 WHERE f > 'qux';
f f
DROP TABLE t1; DROP TABLE t1;
#
# MDEV-26737: Outdated VARIABLE_COMMENT for HISTOGRAM_TYPE in I_S.SYSTEM_VARIABLES
#
select variable_comment from information_schema.system_variables where VARIABLE_NAME='HISTOGRAM_TYPE';
variable_comment
Specifies type of the histograms created by ANALYZE. Possible values are: SINGLE_PREC_HB - single precision height-balanced, DOUBLE_PREC_HB - double precision height-balanced, JSON_HB - height-balanced, stored as JSON.

5
mysql-test/main/statistics_json.test
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@ -242,3 +242,8 @@ ANALYZE TABLE t1 PERSISTENT FOR ALL;
SELECT * FROM t1 WHERE f > 'qux'; SELECT * FROM t1 WHERE f > 'qux';
DROP TABLE t1; DROP TABLE t1;
--echo #
--echo # MDEV-26737: Outdated VARIABLE_COMMENT for HISTOGRAM_TYPE in I_S.SYSTEM_VARIABLES
--echo #
select variable_comment from information_schema.system_variables where VARIABLE_NAME='HISTOGRAM_TYPE';

3
sql/sys_vars.cc
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@ -6496,7 +6496,8 @@ static Sys_var_enum Sys_histogram_type(
"Specifies type of the histograms created by ANALYZE. " "Specifies type of the histograms created by ANALYZE. "
"Possible values are: " "Possible values are: "
"SINGLE_PREC_HB - single precision height-balanced, " "SINGLE_PREC_HB - single precision height-balanced, "
"DOUBLE_PREC_HB - double precision height-balanced.", "DOUBLE_PREC_HB - double precision height-balanced, "
"JSON_HB - height-balanced, stored as JSON.",
SESSION_VAR(histogram_type), CMD_LINE(REQUIRED_ARG), SESSION_VAR(histogram_type), CMD_LINE(REQUIRED_ARG),
histogram_types, DEFAULT(1)); histogram_types, DEFAULT(1));