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Add support for postgres GROUPING SET, ROLLUP and CUBE grouping operators

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Add support for mysql WITH ROLLUP grouping operator
Add support for GROUPING operator
This commit is contained in:
go-jet 2023-03-28 13:16:57 +02:00
parent 31dc7b6dd3
commit fa69565dbf
9 changed files with 476 additions and 70 deletions
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14
mysql/functions.go
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@ -11,7 +11,7 @@ var (
OR = jet.OR
)
// ROW is construct one table row from list of expressions.
// ROW function is used to create a tuple value that consists of a set of expressions or column values.
var ROW = jet.ROW
// ------------------ Mathematical functions ---------------//
@ -281,3 +281,15 @@ var GREATEST = jet.GREATEST
// LEAST selects the smallest value from a list of expressions, or null if any of the expressions is null.
var LEAST = jet.LEAST
// ----------------------- Group By operators ----------------------------//
// WITH_ROLLUP operator is used with the GROUP BY clause to generate all prefixes of a group of columns including the empty list.
// It creates extra rows in the result set that represent the subtotal values for each combination of columns.
var WITH_ROLLUP = jet.WITH_ROLLUP
// GROUPING function is used to identify which columns are included in a grouping set or a subtotal row. It takes as input
// the name of a column and returns 1 if the column is not included in the current grouping set, and 0 otherwise.
// It can be also used with multiple parameters to check if a set of columns is included in the current grouping set. The result
// of the GROUPING function would then be an integer bit mask having 1’s for the arguments which have GROUPING(argument) as 1.
var GROUPING = jet.GROUPING