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MCOL-5215 Fix overflow of UNION operation involving DECIMAL datatypes.

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When a UNION operation involving DECIMAL datatypes with scale and digits
before the decimal exceeds the currently supported maximum precision
of 38, we throw an error to the user:
"MCS-2060: Union operation exceeds maximum DECIMAL precision of 38".

This is until MCOL-5417 is implemented where ColumnStore will have
full parity with MariaDB server in terms of maximum supported DECIMAL
precision and scale of 65 and 38 digits respectively.
This commit is contained in:
Gagan Goel
2023-02-17 05:22:34 -05:00
parent 8cdcae0d2f
commit 86dcf92d56
10 changed files with 123 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
mysql-test/columnstore/basic/r/mcol641-union.result
View File

@ -1,3 +1,5 @@
# MCOL-641 Union Test Cases
# Once MCOL-5417 is supported, the errored out queries below should be fixed.
DROP DATABASE IF EXISTS mcol641_union_db;
CREATE DATABASE mcol641_union_db;
USE mcol641_union_db;
@ -11,63 +13,52 @@ INSERT INTO cs1 values (99999999999999999999999999999999999999, 9999999999999999
INSERT INTO cs1 values (-99999999999999999999999999999999999998, -9999999999999999999999999999.9999999998, -0.99999999999999999999999999999999999998);
INSERT INTO cs1 values (-99999999999999999999999999999999999999, -9999999999999999999999999999.9999999999, -0.99999999999999999999999999999999999999);
SELECT d1, d1, d2 FROM cs1 UNION SELECT d2, d3, d3 FROM cs1;
d1 d1 d2
125.0000000000 125.00000000000000000000000000000000000000 1.25000000000000000000000000000000000000
-125.0000000000 -125.00000000000000000000000000000000000000 -1.25000000000000000000000000000000000000
99999999999999999999999999999999999998.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
99999999999999999999999999999999999999.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
-99999999999999999999999999999999999998.0000000000 -999999999999999999999999999.99999999999999999999999999999999999999 -999999999999999999999999999.99999999999999999999999999999999999999
-99999999999999999999999999999999999999.0000000000 -999999999999999999999999999.99999999999999999999999999999999999999 -999999999999999999999999999.99999999999999999999999999999999999999
1.2500000000 0.12500000000000000000000000000000000000 0.12500000000000000000000000000000000000
-1.2500000000 -0.12500000000000000000000000000000000000 -0.12500000000000000000000000000000000000
9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998 0.99999999999999999999999999999999999998
9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999 0.99999999999999999999999999999999999999
-9999999999999999999999999999.9999999998 -0.99999999999999999999999999999999999998 -0.99999999999999999999999999999999999998
-9999999999999999999999999999.9999999999 -0.99999999999999999999999999999999999999 -0.99999999999999999999999999999999999999
ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
SELECT d2, d3, d3 FROM cs1 UNION SELECT d1, d1, d2 FROM cs1;
d2 d3 d3
1.2500000000 0.12500000000000000000000000000000000000 0.12500000000000000000000000000000000000
-1.2500000000 -0.12500000000000000000000000000000000000 -0.12500000000000000000000000000000000000
9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998 0.99999999999999999999999999999999999998
9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999 0.99999999999999999999999999999999999999
-9999999999999999999999999999.9999999998 -0.99999999999999999999999999999999999998 -0.99999999999999999999999999999999999998
-9999999999999999999999999999.9999999999 -0.99999999999999999999999999999999999999 -0.99999999999999999999999999999999999999
125.0000000000 125.00000000000000000000000000000000000000 1.25000000000000000000000000000000000000
-125.0000000000 -125.00000000000000000000000000000000000000 -1.25000000000000000000000000000000000000
99999999999999999999999999999999999998.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
99999999999999999999999999999999999999.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
-99999999999999999999999999999999999998.0000000000 -999999999999999999999999999.99999999999999999999999999999999999999 -999999999999999999999999999.99999999999999999999999999999999999999
-99999999999999999999999999999999999999.0000000000 -999999999999999999999999999.99999999999999999999999999999999999999 -999999999999999999999999999.99999999999999999999999999999999999999
ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
SELECT d1, d2, d3 FROM cs1 UNION SELECT d1, d2, d3 FROM cs1;
d1 d2 d3
125 1.2500000000 0.12500000000000000000000000000000000000
-125 -1.2500000000 -0.12500000000000000000000000000000000000
99999999999999999999999999999999999998 9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998
99999999999999999999999999999999999999 9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999
-99999999999999999999999999999999999998 -9999999999999999999999999999.9999999998 -0.99999999999999999999999999999999999998
-99999999999999999999999999999999999999 -9999999999999999999999999999.9999999999 -0.99999999999999999999999999999999999999
125 1.2500000000 0.12500000000000000000000000000000000000
99999999999999999999999999999999999998 9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998
99999999999999999999999999999999999999 9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999
INSERT INTO cs2 VALUES (125, 1.25, 0.125);
INSERT INTO cs2 values (99999999999999999999999999999999999998, 9999999999999999999999999999.9999999998, 0.99999999999999999999999999999999999998);
INSERT INTO cs2 values (99999999999999999999999999999999999999, 9999999999999999999999999999.9999999999, 0.99999999999999999999999999999999999999);
SELECT d1, d1, d2 FROM cs2 UNION SELECT d2, d3, d3 FROM cs2;
d1 d1 d2
125.0000000000 125.00000000000000000000000000000000000000 1.25000000000000000000000000000000000000
99999999999999999999999999999999999998.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
99999999999999999999999999999999999999.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
1.2500000000 0.12500000000000000000000000000000000000 0.12500000000000000000000000000000000000
9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998 0.99999999999999999999999999999999999998
9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999 0.99999999999999999999999999999999999999
ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
SELECT d2, d3, d3 FROM cs2 UNION SELECT d1, d1, d2 FROM cs2;
d2 d3 d3
1.2500000000 0.12500000000000000000000000000000000000 0.12500000000000000000000000000000000000
9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998 0.99999999999999999999999999999999999998
9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999 0.99999999999999999999999999999999999999
125.0000000000 125.00000000000000000000000000000000000000 1.25000000000000000000000000000000000000
99999999999999999999999999999999999998.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
99999999999999999999999999999999999999.0000000000 999999999999999999999999999.99999999999999999999999999999999999999 999999999999999999999999999.99999999999999999999999999999999999999
ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
SELECT d1, d2, d3 FROM cs2 UNION SELECT d1, d2, d3 FROM cs2;
d1 d2 d3
125 1.2500000000 0.12500000000000000000000000000000000000
99999999999999999999999999999999999998 9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998
99999999999999999999999999999999999999 9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999
DROP TABLE cs1, cs2;
CREATE TABLE cs1 (d1 DECIMAL(20, 0), d2 DECIMAL(20, 18), d3 DECIMAL(18, 18)) ENGINE=columnstore;
CREATE TABLE cs2 (d1 DECIMAL(20, 0) UNSIGNED, d2 DECIMAL(20, 18) UNSIGNED, d3 DECIMAL(18, 18) UNSIGNED) ENGINE=columnstore;
INSERT INTO cs1 VALUES (12345678901234567890, 12.345678901234567891, 0.123456789012345678);
INSERT INTO cs1 VALUES (-12345678901234567890, -12.345678901234567891, -0.123456789012345678);
INSERT INTO cs1 VALUES (99999999999999999999, 99.999999999999999999, 0.999999999999999999);
INSERT INTO cs1 VALUES (-99999999999999999999, -99.999999999999999999, -0.999999999999999999);
INSERT INTO cs2 VALUES (12345678901234567890, 12.345678901234567891, 0.123456789012345678);
INSERT INTO cs2 VALUES (99999999999999999999, 99.999999999999999999, 0.999999999999999999);
SELECT d1, d1, d2 FROM cs1 UNION SELECT d2, d3, d3 FROM cs1;
d1 d1 d2
-12.345678901234567891 -0.123456789012345678 -0.123456789012345678
-12345678901234567890.000000000000000000 -12345678901234567890.000000000000000000 -12.345678901234567891
-99.999999999999999999 -0.999999999999999999 -0.999999999999999999
-99999999999999999999.000000000000000000 -99999999999999999999.000000000000000000 -99.999999999999999999
12.345678901234567891 0.123456789012345678 0.123456789012345678
12345678901234567890.000000000000000000 12345678901234567890.000000000000000000 12.345678901234567891
99.999999999999999999 0.999999999999999999 0.999999999999999999
99999999999999999999.000000000000000000 99999999999999999999.000000000000000000 99.999999999999999999
SELECT d1, d1, d2 FROM cs2 UNION SELECT d2, d3, d3 FROM cs2;
d1 d1 d2
12.345678901234567891 0.123456789012345678 0.123456789012345678
12345678901234567890.000000000000000000 12345678901234567890.000000000000000000 12.345678901234567891
99.999999999999999999 0.999999999999999999 0.999999999999999999
99999999999999999999.000000000000000000 99999999999999999999.000000000000000000 99.999999999999999999
DROP DATABASE mcol641_union_db;