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Update macro regexp_instr.sql for Athena support #32

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Update macro regexp_instr.sql for Athena support #32

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15 changes: 15 additions & 0 deletions macros/regex/regexp_instr.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,21 @@ length(regexp_extract({{ source_value }}, '{{ regexp }}', 0))
if({{ regexp_query}} = -1, 0, {{ regexp_query}})
{% endmacro %}

{% macro athena__regexp_instr(source_value, regexp, position, occurrence, is_raw, flags) %}
{% if is_raw or flags %}
{{ exceptions.warn(
"is_raw and flags options are not supported for Athena adapter "
~ "and are being ignored."
) }}
{% endif %}
{# Athena doesn't have regexp_instr, so we simulate it using regexp_like #}
{# Return 1 if match found (like position), 0 if not found #}
case
when regexp_like({{ source_value }}, '{{ regexp }}') then 1
else 0
end
{% endmacro %}

{% macro _validate_flags(flags, alphabet) %}
{% for flag in flags %}
{% if flag not in alphabet %}
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