feat(catalog): add pg_my_temp_schema and pg_get_viewdef(int4, bool…

[KeXiangWang]

…ean and pg_catalog.pg_proc.proargtypes)

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What's changed and what's your intention?

Add pg_my_temp_schema, pg_get_viewdef(int4, boolean), and pg_catalog.pg_proc.proargtypes

pg_my_temp_schema always return 0 as we haven't supported temp schema yet.
pg_get_viewdef(int4, boolean) directly call pg_get_viewdef(int4).
pg_catalog.pg_proc.proargtypes: pg_proc return nothing now.

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added test labels as necessary. See details.
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
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[neverchanje]

Are you intending to support a certain integration?

[KeXiangWang]

Are you intending to support a certain integration?

For Postico

[neverchanje]

Thanks. This function looks useful

[neverchanje]

Thanks. This function looks useful