[ https://issues.apache.org/jira/browse/CALCITE-5910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jerin John updated CALCITE-5910: -------------------------------- Summary: Implement BigQuery function REGEXP_EXTRACT (was: Implement BigQuery functions REGEXP_EXTRACT and REGEXP_EXTRACT_ALL) > Implement BigQuery function REGEXP_EXTRACT > ------------------------------------------ > > Key: CALCITE-5910 > URL: https://issues.apache.org/jira/browse/CALCITE-5910 > Project: Calcite > Issue Type: Task > Reporter: Jerin John > Assignee: Jerin John > Priority: Major > Labels: pull-request-available > > Add support for > [REGEXP_EXTRACT|https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#regexp_extract] > and > [REGEXP_EXTRACT_ALL|https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#regexp_extract_all] > functions from BigQuery. > *{{REGEXP_EXTRACT(value, regexp[, position[, occurrence]])}}* > Returns the substring in {{value}} that matches the regular expression > {{{}regexp{}}}. Returns {{NULL}} if there is no match. > * If the regular expression contains a capturing group ({{{}(...){}}}), and > there is a match for that capturing group, that match is returned. If there > are multiple matches for a capturing group, the last match is returned. > * If {{position}} is specified, the search starts at this position in > {{{}value{}}}, otherwise it starts at the beginning of {{{}value{}}}. > * If {{occurrence}} is specified, the search returns a specific occurrence of > the {{regexp}} in {{{}value{}}}, otherwise returns the first match. > *{{REGEXP_EXTRACT_ALL(value, regexp)}}* > Returns an array of all substrings of value that match the re2 regular > expression, regexp. Returns an empty array if there is no match. -- This message was sent by Atlassian Jira (v8.20.10#820010)