feat: add exasol, impala, materialize, risingwave, druid dialects to IbisBackend#85
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Registers SingleStoreDB as the 15th supported dialect. MySQL-compatible connection model with added driver protocol selector (mysql/http/https) and local_infile parameter. No adapter needed — all params map directly via driver_key. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Registers 5 remaining SQL-based ibis backends, bringing the total to 20 supported dialects. All follow the established DialectSpec + BackendDescriptor pattern with no custom adapters needed. Notable: Druid uses ENDPOINT_PATH (not PATH) to avoid collision with the system PATH environment variable in pydantic settings. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Adds the 5 remaining SQL-based ibis backends, completing full coverage of all server-based ibis dialects:
clusterparam for streaming SQLENDPOINT_PATH+SCHEMEparamsBrings total dialect count from 15 → 20. All use KWARGS connection mode with no custom adapters.
Note: Druid uses
ENDPOINT_PATHinstead ofPATHto avoid collision with the systemPATHenvironment variable in pydantic settings.Stacks on: #84 (SingleStoreDB dialect)
Changes
core/constants.py— 5 new entries in provider type, backend, and prefix enumscore/settings/{exasol,impala,materialize,risingwave,druid}.py— Settings classescore/settings/__init__.py— Wire up exportsbackends/ibis/dialects/_registry.py— 5 connection builders + DialectSpec entriespyproject.toml— 5 optional extrastests/— 33 new unit tests across 5 test files, registry count 15 → 20Test plan
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