{"record":{"id":"6908e86182ddc2b6","repo":"chroma-core/chroma","slug":"uniqueconstrainterror-6908e8","errorCode":"UniqueConstraintError","errorMessage":"Database {name} already exists for tenant {tenant}","messagePattern":"Database (.+?) already exists for tenant (.+?)","errorType":"exception","errorClass":"UniqueConstraintError","httpStatus":409,"severity":"error","filePath":"chromadb/db/mixins/sysdb.py","lineNumber":93,"sourceCode":"            tenants = Table(\"tenants\")\n            insert_database = (\n                self.querybuilder()\n                .into(databases)\n                .columns(databases.id, databases.name, databases.tenant_id)\n                .insert(\n                    ParameterValue(self.uuid_to_db(id)),\n                    ParameterValue(name),\n                    self.querybuilder()\n                    .select(tenants.id)\n                    .from_(tenants)\n                    .where(tenants.id == ParameterValue(tenant)),\n                )\n            )\n            sql, params = get_sql(insert_database, self.parameter_format())\n            try:\n                cur.execute(sql, params)\n            except self.unique_constraint_error() as e:\n                raise UniqueConstraintError(\n                    f\"Database {name} already exists for tenant {tenant}\"\n                ) from e\n\n    @override\n    def get_database(self, name: str, tenant: str = DEFAULT_TENANT) -> Database:\n        with self.tx() as cur:\n            databases = Table(\"databases\")\n            q = (\n                self.querybuilder()\n                .from_(databases)\n                .select(databases.id, databases.name)\n                .where(databases.name == ParameterValue(name))\n                .where(databases.tenant_id == ParameterValue(tenant))\n            )\n            sql, params = get_sql(q, self.parameter_format())\n            row = cur.execute(sql, params).fetchone()\n            if not row:\n                raise NotFoundError(","sourceCodeStart":75,"sourceCodeEnd":111,"githubUrl":"https://github.com/chroma-core/chroma/blob/aecdd12c8a891610db8653630b066b32ceb678b5/chromadb/db/mixins/sysdb.py#L75-L111","documentation":"Error \"Database {name} already exists for tenant {tenant}\" thrown in chroma-core/chroma.","triggerScenarios":"Thrown at chromadb/db/mixins/sysdb.py:93 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"aecdd12c8a891610db8653630b066b32ceb678b5","analyzedAt":"2026-08-16T21:53:27.228Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}