Generate geo-first tgeo spatial-predicate operators#193
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…aho-mqtt-cpp The Nix environment provides paho-mqtt-cpp as a shared-only library and does not include libmeos. Four changes make the build pass: - flake.nix: add stock paho-mqtt-c + paho-mqtt-cpp to baseThirdPartyDeps; pass -DNES_ENABLE_MEOS=OFF in both defaultPackage and devShell cmakeFlags. - nes-plugins/CMakeLists.txt: introduce NES_ENABLE_MQTT and NES_ENABLE_MEOS options that gate the respective plugin subdirectories via activate_optional_plugin(). - nes-plugins/Sources/MQTTSource, nes-plugins/Sinks/MQTTSink: select PahoMqttCpp::paho-mqttpp3-static when available, fall back to the shared PahoMqttCpp::paho-mqttpp3 target (Nix only ships the shared variant). - nes-physical-operators: gate all MEOS-specific add_plugin calls and the nes-meos link behind if(NES_ENABLE_MEOS) in three CMakeLists files (top-level, Functions/Meos, Aggregation/Function/Meos). - CMakeLists.txt (root): declare option(NES_ENABLE_MEOS) and add_compile_definitions(NES_ENABLE_MEOS) before the nes-* subdirectory loop so the preprocessor symbol is visible to all sibling components. - nes-query-optimizer/LowerToPhysicalWindowedAggregation.cpp: guard the TemporalSequenceAggregationPhysicalFunction include and instantiation with #ifdef NES_ENABLE_MEOS so the translation unit compiles and links when MEOS is disabled.
… build/grammar/QPC glue tools/codegen/ contains codegen_nebula.py, which reads a JSON operator descriptor and emits the four-layer NebulaStream pipeline tuple (logical .hpp/.cpp + physical .hpp/.cpp) per MEOS scalar function, then idempotently injects add_plugin entries into the Meos CMakeLists files, lexer tokens and functionName alternations into AntlrSQL.g4, and dispatch cases into AntlrSQLQueryPlanCreator.cpp — each injection gated by a per-op marker so repeated runs are safe. build_descriptor.py classifies MEOS gap functions by signature into named SHAPEs that select the corresponding physical C++ template; trgeo-descriptor.json is the ready-to-use descriptor for the 34-operator trgeometry family (W148–W149). codegen_aggregations.py handles the separate aggregation four-layer shape. codegen_input.example.json documents the descriptor format. build_local.sh drives the NebulaStream dev-image cmake build without a host C++23 toolchain. The generator reproduces the committed W148–W149 trgeometry surface byte-for-byte from the descriptor. The generated IDL (meos-idl.json) is excluded from the repository and regenerated via MEOS-API run.py against the pinned MEOS headers.
…LIZED*
MEOS-API run.py correctly resolves GSERIALIZED in the IDL; parse_sigs
normalizes `const GSERIALIZED *` to GSERIALIZED* (strip-const + first-token
+ "*"). The four trgeometry shape classifiers that match geometry arguments
use GSERIALIZED* throughout:
- trgeometry_geo_predicate: (Temporal*, int*) → (Temporal*, GSERIALIZED*)
- geo_trgeometry_predicate: (int*, Temporal*) → (GSERIALIZED*, Temporal*)
- trgeometry_geo_dwithin: (Temporal*, int*, double) → (Temporal*, GSERIALIZED*, double)
- trgeometry_nad geo-branch: (Temporal*, int*) → (Temporal*, GSERIALIZED*)
The trgeometry_nad two-temporal branch adds fn.endswith("_trgeometry") so
nad_trgeometry_tpoint (Temporal*, Temporal*) is excluded, matching the
committed descriptor's scope.
Equivalence probe: build_descriptor.py against the master IDL (4492 fns)
reproduces the committed trgeo-descriptor.json 34-operator set byte-for-byte.
Genuine int* out-params (trgeometry_instants/segments/sequences/stboxes, all
with non-int return types) are unaffected. nad_trgeometry_tpoint is correctly
excluded.
…lways verbs
cmp_scalar_tempfirst and cmp_scalar_scalarfirst matched on signature alone, so a nearest-approach
function like nad_tint_int (int(Temporal*, int)) was misclassified as a comparison operator. Require
the ever/always + {eq,ne,lt,le,gt,ge} naming so only comparison functions match.
Generate the 9 geometry-first temporal-geo spatial predicates — covers, disjoint, intersects, touches, and dwithin with a static geometry as the first argument and a temporal geo as the second (ever and always variants) — across the logical and physical layers, with matching grammar tokens, parser dispatch, and CMake entries. The temporal-point spatial-relation templates build the temporal geometry and the static geometry the same way in either argument order; only the operand order of the MEOS call differs. Parameterize that operand order through a geo_first descriptor flag so the shared templates emit both the temporal-first calls (eintersects_tgeo_geo) and the geo-first calls (eintersects_geo_tgeo) without duplication, and classify the geo-first spatial relations onto the existing temporal-point and temporal-point-with-distance builders.
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Generates the 9 geometry-first temporal-geo spatial predicates —
covers,disjoint,intersects,touches, anddwithinwith a static geometry as thefirst argument and a temporal geo as the second (
everandalwaysvariants) —across the logical and physical layers, with matching grammar tokens, parser
dispatch, and CMake entries.
The temporal-point spatial-relation templates build the temporal geometry and
the static geometry identically in either argument order; only the operand order
of the MEOS call differs. A
geo_firstdescriptor flag parameterizes thatoperand order, so the shared templates emit both the temporal-first calls
(
eintersects_tgeo_geo) and the geo-first calls (eintersects_geo_tgeo) with noduplication. The geo-first relations classify onto the existing temporal-point
and temporal-point-with-distance builders. These mirror the already-wired
temporal-first predicates with the arguments swapped.
Both physical layouts (temporal-point and temporal-point-with-distance) compile
against an all-families (
-DALL) libmeos.Stacked on #170 (generator infrastructure); the shared generator changes land there first.