![]() May refer to tables in the FROM clause of an enclosing query. WHERE clause, ON clause of a JOIN, or as an argument to an aggregateĪn IN, EXISTS, UNIQUE or scalar sub-query may be correlated that is, it In any place where an expression can occur (such as the SELECT clause, IN, EXISTS, UNIQUE and scalar sub-queries can occur Returns more than one row, it is an error. If the sub-query returns no rows, the value is NULL if it Literally speaking the epoch is Unix time 0 (midnight ), but 'epoch' is often used as a synonym for Unix time. Aggregate and grouping functions may only appear in anĪggregate query, and only in a SELECT, HAVING or ORDER BY clause.Ī scalar sub-query is a sub-query used as an expression. The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of seconds that have elapsed since Janu(midnight UTC/GMT), not counting leap seconds (in ISO 8601: ). Must be constant within the current group (that is, grouping constantsĪs defined by the GROUP BY clause, or constants), or aggregateįunctions, or a combination of constants and aggregateįunctions. HAVING and ORDER BY clauses of an aggregate query, all expressions ![]() Or a dynamic parameter whose value is an integer.Īn aggregate query is a query that contains a GROUP BY or a HAVINGĬlause, or aggregate functions in the SELECT clause. In query, count and start may each be either an unsigned integer literal ![]() In orderItem, if expression is a positive integer n, it denotes In those same conformance levels, any column in insert may be replaced byĬolumnDecl, which has a similar effect to including it in an EXTEND clause. TablePrimary may only contain an EXTEND clause in certain In merge, at least one of the WHEN MATCHED and WHEN NOT MATCHED clauses must List of target columns, the query must have the same number ofĬolumns as the target table, except in certain F or K timestamp: Datetime object or timestamp string (ISO 8601). In insert, if the INSERT or UPSERT statement does not specify a a custom sensor you may have created to report the free space on your laptop. statement : setStatement | resetStatement | explain | describe | insert | update | merge | delete | query statementList : statement * setStatement : ')' The page describes the SQL dialect recognized by Calcite’s default SQL parser.
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