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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.
65 lines
5.2 KiB
Plaintext
65 lines
5.2 KiB
Plaintext
# MCOL-641 Union Test Cases
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# Once MCOL-5417 is supported, the errored out queries below should be fixed.
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DROP DATABASE IF EXISTS mcol641_union_db;
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CREATE DATABASE mcol641_union_db;
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USE mcol641_union_db;
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SET SQL_MODE='ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';
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CREATE TABLE cs1 (d1 DECIMAL(38), d2 DECIMAL(38,10), d3 DECIMAL(38,38)) ENGINE=columnstore;
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CREATE TABLE cs2 (d1 DECIMAL(38) UNSIGNED, d2 DECIMAL(38,10) UNSIGNED, d3 DECIMAL(38,38) UNSIGNED) ENGINE=columnstore;
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INSERT INTO cs1 VALUES (125, 1.25, 0.125);
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INSERT INTO cs1 VALUES (-125, -1.25, -0.125);
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INSERT INTO cs1 values (99999999999999999999999999999999999998, 9999999999999999999999999999.9999999998, 0.99999999999999999999999999999999999998);
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INSERT INTO cs1 values (99999999999999999999999999999999999999, 9999999999999999999999999999.9999999999, 0.99999999999999999999999999999999999999);
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INSERT INTO cs1 values (-99999999999999999999999999999999999998, -9999999999999999999999999999.9999999998, -0.99999999999999999999999999999999999998);
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INSERT INTO cs1 values (-99999999999999999999999999999999999999, -9999999999999999999999999999.9999999999, -0.99999999999999999999999999999999999999);
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SELECT d1, d1, d2 FROM cs1 UNION SELECT d2, d3, d3 FROM cs1;
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ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
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SELECT d2, d3, d3 FROM cs1 UNION SELECT d1, d1, d2 FROM cs1;
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ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
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SELECT d1, d2, d3 FROM cs1 UNION SELECT d1, d2, d3 FROM cs1;
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d1 d2 d3
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-125 -1.2500000000 -0.12500000000000000000000000000000000000
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-99999999999999999999999999999999999998 -9999999999999999999999999999.9999999998 -0.99999999999999999999999999999999999998
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-99999999999999999999999999999999999999 -9999999999999999999999999999.9999999999 -0.99999999999999999999999999999999999999
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125 1.2500000000 0.12500000000000000000000000000000000000
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99999999999999999999999999999999999998 9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998
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99999999999999999999999999999999999999 9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999
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INSERT INTO cs2 VALUES (125, 1.25, 0.125);
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INSERT INTO cs2 values (99999999999999999999999999999999999998, 9999999999999999999999999999.9999999998, 0.99999999999999999999999999999999999998);
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INSERT INTO cs2 values (99999999999999999999999999999999999999, 9999999999999999999999999999.9999999999, 0.99999999999999999999999999999999999999);
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SELECT d1, d1, d2 FROM cs2 UNION SELECT d2, d3, d3 FROM cs2;
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ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
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SELECT d2, d3, d3 FROM cs2 UNION SELECT d1, d1, d2 FROM cs2;
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ERROR 42000: The storage engine for the table doesn't support MCS-2060: Union operation exceeds maximum DECIMAL precision of 38.
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SELECT d1, d2, d3 FROM cs2 UNION SELECT d1, d2, d3 FROM cs2;
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d1 d2 d3
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125 1.2500000000 0.12500000000000000000000000000000000000
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99999999999999999999999999999999999998 9999999999999999999999999999.9999999998 0.99999999999999999999999999999999999998
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99999999999999999999999999999999999999 9999999999999999999999999999.9999999999 0.99999999999999999999999999999999999999
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DROP TABLE cs1, cs2;
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CREATE TABLE cs1 (d1 DECIMAL(20, 0), d2 DECIMAL(20, 18), d3 DECIMAL(18, 18)) ENGINE=columnstore;
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CREATE TABLE cs2 (d1 DECIMAL(20, 0) UNSIGNED, d2 DECIMAL(20, 18) UNSIGNED, d3 DECIMAL(18, 18) UNSIGNED) ENGINE=columnstore;
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INSERT INTO cs1 VALUES (12345678901234567890, 12.345678901234567891, 0.123456789012345678);
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INSERT INTO cs1 VALUES (-12345678901234567890, -12.345678901234567891, -0.123456789012345678);
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INSERT INTO cs1 VALUES (99999999999999999999, 99.999999999999999999, 0.999999999999999999);
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INSERT INTO cs1 VALUES (-99999999999999999999, -99.999999999999999999, -0.999999999999999999);
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INSERT INTO cs2 VALUES (12345678901234567890, 12.345678901234567891, 0.123456789012345678);
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INSERT INTO cs2 VALUES (99999999999999999999, 99.999999999999999999, 0.999999999999999999);
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SELECT d1, d1, d2 FROM cs1 UNION SELECT d2, d3, d3 FROM cs1;
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d1 d1 d2
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-12.345678901234567891 -0.123456789012345678 -0.123456789012345678
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-12345678901234567890.000000000000000000 -12345678901234567890.000000000000000000 -12.345678901234567891
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-99.999999999999999999 -0.999999999999999999 -0.999999999999999999
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-99999999999999999999.000000000000000000 -99999999999999999999.000000000000000000 -99.999999999999999999
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12.345678901234567891 0.123456789012345678 0.123456789012345678
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12345678901234567890.000000000000000000 12345678901234567890.000000000000000000 12.345678901234567891
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99.999999999999999999 0.999999999999999999 0.999999999999999999
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99999999999999999999.000000000000000000 99999999999999999999.000000000000000000 99.999999999999999999
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SELECT d1, d1, d2 FROM cs2 UNION SELECT d2, d3, d3 FROM cs2;
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d1 d1 d2
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12.345678901234567891 0.123456789012345678 0.123456789012345678
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12345678901234567890.000000000000000000 12345678901234567890.000000000000000000 12.345678901234567891
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99.999999999999999999 0.999999999999999999 0.999999999999999999
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99999999999999999999.000000000000000000 99999999999999999999.000000000000000000 99.999999999999999999
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DROP DATABASE mcol641_union_db;
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