Attach the @sqlfn SQL-name map to the catalog#18
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Follow each function's @csqlfn -> wrapper @sqlfn -> SQL name chain and attach the resulting SQL name to the catalog. The vendored-source root is overridable via MDB_SRC_ROOT so the @sqlfn (and @InGroup) extraction can be pointed at the same pinned MobilityDB checkout as the headers, keeping the generated catalog reproducibly equivalent to that pin.
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A copy-paste @csqlfn in meos/src can point an ever/always spatial-relationship function (named <e|a><verb>_...) at the opposite-prefix MobilityDB-C wrapper — e.g. eintersects_tgeo_geo is tagged `@csqlfn #Aintersects_tgeo_geo`, so the chain resolves its @sqlfn to aIntersects instead of eIntersects. That silently drops the real (tgeo,geo) overload from the eIntersects group in a binding's overload dispatcher, leaving only a wrong-subtype backing reachable — which then raises a runtime "The temporal value must be of type tcbuffer" on a tgeompoint (observed in the MobilitySpark BerlinMOD bench, q17). The parser is faithful — it propagates whatever the source tags say — so this is a source defect to fix in meos/src, not a parser bug. Add lint_ea_sqlfn() and report the mismatches at catalog-gen so they surface loudly instead of shipping a wrong @sqlfn silently. Flags 5 live mistags (eintersects_tgeo_geo, etouches_tpoint_geo/_tcbuffer_geo/_tcbuffer_cbuffer, econtains_geo_trgeo); relayed to the source maintainers to correct the @csqlfn tags.
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The catalog carries MEOS-C names + C signatures but not the user-facing SQL names that SQL/UDF-emitting bindings (MobilitySpark, MobilityDuck, MobilityDB SQL) need. Both are machine-extractable from the doxygen tag chain already in the source:
parser/sqlfn.pyextracts and joins the chain from the vendored_mobilitydb/source;run.pyattachessqlfn/sqlop/mdbCper function as step 4. 1997 / 2830 functions now carry their SQL name (e.g.tpoint_length->length,econtains_geo_tgeo->eContains,temporal_value_at_timestamptz->valueAtTimestamp); the rest are internal (no SQL surface).Binding generators can now read SQL names from the single SoT instead of per-binding hand-maps.
Byproduct — wrappers missing
@sqlfn(chain reachable but tag absent), for a follow-up source pass:Stbox_constructor(->stbox),Temporal_after_timestamptz(->afterTimestamp),Temporal_before_timestamptz(->beforeTimestamp),Temporal_simplify_max_dist(->maxDistSimplify).