17 lines
392 B
PL/PgSQL
17 lines
392 B
PL/PgSQL
begin;
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create function wt_to_sentinel(string text) returns text
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as $$
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select concat(
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u&'\fffe',
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trim(trailing u&'\ffff' from trim(leading u&'\fffe ' from string)),
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u&'\ffff'
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);
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$$ language sql
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immutable
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returns null on null input;
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comment on function wt_to_sentinel is
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'wt_to_sentinel takes a string and returns it as a wt_sentinel';
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commit;
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