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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2022-07-09 15:10:15 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2022-07-09 15:10:15 -0400 |
| commit | 3cd0ac987819280eb8dd3e0997f0294b8bc6355a (patch) | |
| tree | adcb32ec90bca7d80e16bbd4e2cbf2d4242d4a85 /src/backend/nodes/readfuncs.c | |
| parent | 8c73c11a0d39049de2c1f400d8765a0eb21f5228 (diff) | |
| download | postgresql-3cd0ac987819280eb8dd3e0997f0294b8bc6355a.tar.gz postgresql-3cd0ac987819280eb8dd3e0997f0294b8bc6355a.zip | |
Doc: rearrange high-level commentary about node support coverage.
copyfuncs.c and friends no longer seem like great places to put
high-level remarks about what's covered and what isn't. Move that
material to backend/nodes/README and other more-prominent places.
Add back (versions of) some remarks that disappeared in 2be87f092.
Discussion: https://postgr.es/m/3843645.1657385930@sss.pgh.pa.us
Diffstat (limited to 'src/backend/nodes/readfuncs.c')
| -rw-r--r-- | src/backend/nodes/readfuncs.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c index 67b0f798c15..1421686938f 100644 --- a/src/backend/nodes/readfuncs.c +++ b/src/backend/nodes/readfuncs.c @@ -11,16 +11,12 @@ * src/backend/nodes/readfuncs.c * * NOTES - * Path nodes do not have any readfuncs support, because we never - * have occasion to read them in. (There was once code here that - * claimed to read them, but it was broken as well as unused.) We - * never read executor state trees, either. - * * Parse location fields are written out by outfuncs.c, but only for * debugging use. When reading a location field, we normally discard * the stored value and set the location field to -1 (ie, "unknown"). * This is because nodes coming from a stored rule should not be thought * to have a known location in the current query's text. + * * However, if restore_location_fields is true, we do restore location * fields from the string. This is currently intended only for use by the * WRITE_READ_PARSE_PLAN_TREES test code, which doesn't want to cause |