Will Noble created CALCITE-5509: ----------------------------------- Summary: Allow automatic type coercion for strings in BigQuery functions Key: CALCITE-5509 URL: https://issues.apache.org/jira/browse/CALCITE-5509 Project: Calcite Issue Type: Improvement Reporter: Will Noble
BigQuery allows string literals to be automatically coerced into {{{}TIMESTAMP{}}}, {{{}DATETIME{}}}, or {{DATE}} literals. See in the [docs|https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical]: {quote}String literals in canonical date format also implicitly coerce to DATE type when used where a DATE-type expression is expected... String literals with the canonical datetime format implicitly coerce to a datetime literal when used where a datetime expression is expected... String literals with the canonical timestamp format, including those with time zone names, implicitly coerce to a timestamp literal when used where a timestamp expression is expected. {quote} We should make sure that the BQ library functions respect this type coercion in general. This only applies to literals; not string values in general. For example, {{'2023-01-30'}} can be coerced to a timestamp, datetime, or date, but {{SUBSTRING('x2023-01-30', 2)}} cannot. -- This message was sent by Atlassian Jira (v8.20.10#820010)