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Overview
| Comment: | An extra sentence of clarification on explicit collating sequences on an IN operator. |
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| SHA3-256: |
568e2f047e0e807ac2245d10d866711e |
| User & Date: | drh 2020-05-20 16:59:42.635 |
Context
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2020-05-20
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| 17:42 | Documentation updates based on code review. (check-in: 0bdeed702c user: drh tags: trunk) | |
| 16:59 | An extra sentence of clarification on explicit collating sequences on an IN operator. (check-in: 568e2f047e user: drh tags: trunk) | |
| 15:02 | Update the change log. (check-in: 18e8d6c077 user: drh tags: trunk) | |
Changes
Changes to pages/datatype3.in.
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673 674 675 676 677 678 679 680 681 682 683 684 685 686 | ^The expression "x BETWEEN y and z" is logically equivalent to two comparisons "x >= y AND x <= z" and works with respect to collating functions as if it were two separate comparisons. ^(The expression "x IN (SELECT y ...)" is handled in the same way as the expression "x = y" for the purposes of determining the collating sequence.)^ ^(The collating sequence used for expressions of the form "x IN (y, z, ...)" is the collating sequence of x.)^ </p> <p> ^Terms of the ORDER BY clause that is part of a [SELECT] statement may be assigned a collating sequence using the [COLLATE operator], in which case the specified collating function is used for sorting. | > > > | 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 | ^The expression "x BETWEEN y and z" is logically equivalent to two comparisons "x >= y AND x <= z" and works with respect to collating functions as if it were two separate comparisons. ^(The expression "x IN (SELECT y ...)" is handled in the same way as the expression "x = y" for the purposes of determining the collating sequence.)^ ^(The collating sequence used for expressions of the form "x IN (y, z, ...)" is the collating sequence of x.)^ If an explicit collating sequence is required on an IN operator it should be applied to the left operand, like this: "x COLLATE nocase IN (y,z, ...)". </p> <p> ^Terms of the ORDER BY clause that is part of a [SELECT] statement may be assigned a collating sequence using the [COLLATE operator], in which case the specified collating function is used for sorting. |
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