Results of 1 - 3 of about 3 for unnesting (0.001 sec.)
- Unnesting 11924
- Unnesting is an operation that decomposes values of a composite types into its components. Values of the LIST and STRUCT type may be unnested using the unnest() function . Unnesting turns a LIST -typed value into a table column: each list-e
...lement creates a row, and each element become a column value. Unnesting a STRUCT -typed value creates a column for each member. The member key becomes the column name, and the member value becom...⟩.* ) shorthand syntax , but the unnest() function offers some additional functionality. For a TUPLE (unnamed struct), the unnesting operation is the same as for a named STRUCT , but in this case the column name is generated based on the (1-based) ordinal...nest() function. The unnest() function has a number of optional additional arguments to control the behavior for recursive unnesting . The unnest function can be called in the SELECT -clause as if it is a scalar function. The unnest function may not be ca... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/unnest.html
- Utility Functions 7999
- Scalar Utility Functions The functions below are difficult to categorize into specific function types and are broadly useful. Name Description alias(column) Return the name of the column. can_cast_implicitly(source_value, target_value) Whet
...0, KEYWORD, AS), (13, IDENTIFIER, x) | unnest(list) | Description | Returns a table with one row per element of list . See Unnesting for details, including recursive unnesting of nested lists and structs. | | Example | unnest([1, 2, 3]) | | Result | 3 row... - https://man.mtool.work/duckdb/2.0/sql/functions/utility.html
- Keywords and Identifiers 7961
- Identifiers Similarly to other SQL dialects and programming languages, identifiers in DuckDB's SQL are subject to several rules. Unquoted identifiers need to conform to a number of rules: They must not be a reserved keyword (see duckdb_keyw
...ble quotes. Deduplicating Identifiers In some cases, duplicate identifiers can occur, e.g., column names may conflict when unnesting a nested data structure. In these cases, DuckDB automatically deduplicates column names by renaming them according to the... - https://man.mtool.work/duckdb/2.0/sql/dialect/keywords_and_identifiers.html
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