David Morgenstern writes:
> Can somebody explain why text_pattern_ops can be used on varchar
> columns, considering it can’t be used for bpchar columns?
The underlying rule there is that an opclass can be applied to an index
column if the column's actual type is binary-coercible to what the opcla
be used for varchar columns.
> However today I stumbled upon an index using text_pattern_ops on a varchar
> column.
> Everything seems to be working fine. Now I am wondering what the difference
> between text_pattern_ops and varchar_pattern_ops might be.
>
> Can somebody explain wh
e used for varchar columns. However today I
stumbled upon an index using text_pattern_ops on a varchar column. Everything
seems to be working fine. Now I am wondering what the difference between
text_pattern_ops and varchar_pattern_ops might be.
Can somebody explain why text_pattern_ops can be u
