{
  "schema": 1,
  "sqlstate": "42701",
  "condition_name": "duplicate_column",
  "runner": "scripts/verify_cases.py",
  "targets": {
    "latest": {
      "binary": "Homebrew PostgreSQL 18.6",
      "required": true
    },
    "pg10": {
      "image": "postgres:10",
      "required": true
    }
  },
  "cases": [
    {
      "id": "duplicate_column",
      "versions": [
        "10",
        "18"
      ],
      "preconditions": [
        "A runner-owned disposable target is provisioned."
      ],
      "trigger": "Create a table that lists id twice.",
      "assertions": [
        "SQLSTATE is 42701 with the duplicate-column diagnostic",
        "The session remains IDLE",
        "A table with distinct columns can be created and inspected"
      ],
      "repair": "Give each column a distinct name and rerun the DDL.",
      "cleanup": "Drop the case schema with an owner connection."
    }
  ],
  "evidence_status": "authored",
  "snippets": [
    {
      "id": "duplicate_column",
      "case_id": "duplicate_column",
      "language": "sql",
      "statements": {
        "trigger": "CREATE TABLE syntax_schema.duplicate_table (id integer, id text)",
        "repair": "CREATE TABLE syntax_schema.repaired_table (id integer, payload text)",
        "verify": "SELECT count(*) FROM information_schema.columns WHERE table_schema = 'syntax_schema_name' AND table_name = 'repaired_table_name'"
      }
    }
  ],
  "runtime": [
    {
      "id": "runtime.42701-syntax-latest2.latest",
      "run_id": "42701-syntax-latest2",
      "target": "latest",
      "status": "passed",
      "server_version": "18.6 (Homebrew)",
      "server_version_num": 180006,
      "summary_sha256": "23dfe97f3c9373be57b80a6c2d86c3f8ba5467998a158fd5fb44dc4dbf6c1b73",
      "raw_sha256": "50b147ec604b0ebf828d1d31065262eb4a3dfba432b44b03a2bae2b54d02df3a",
      "case_manifest": {
        "id": "manifest.42701",
        "kind": "local_artifact",
        "source_role": "case_manifest",
        "sha256": "9f792ba437d56c9c8517dcc45582799d04c83a50180b5e290e8cc3b90c93fd7e"
      },
      "snippet_registry": {
        "id": "snippet-registry.42701",
        "kind": "local_artifact",
        "source_role": "snippet_registry",
        "sha256": "20767b2140a3242ce7450b1c3eaf0dc89b87f75fd18055d9220c8aeb2df5400f"
      },
      "environment": {
        "TimeZone": "Asia/Shanghai",
        "backend_pid": 2968,
        "binary": {
          "bindir": "/opt/homebrew/Cellar/postgresql@18/18.6/bin",
          "pg_config": "/opt/homebrew/bin/pg_config",
          "pg_config_version": "PostgreSQL 18.6 (Homebrew)",
          "postgres": "/opt/homebrew/Cellar/postgresql@18/18.6/bin/postgres"
        },
        "connection_scope": "runner-owned localhost port",
        "current_user": "runner",
        "docker": {},
        "lc_messages": "C",
        "libpq_version": "18.6",
        "locale": "en_US.UTF-8",
        "log_destination": "csvlog,jsonlog",
        "log_error_verbosity": "verbose",
        "log_min_error_statement": "error",
        "log_min_messages": "error",
        "logging_collector": "on",
        "machine": "arm64",
        "max_connections": "100",
        "platform": "macOS-26.6.2-arm64-arm-64bit-Mach-O",
        "psycopg_version": "3.3.5",
        "python_version": "3.14.6 (main, Jun 10 2026, 10:03:53) [Clang 21.0.0 (clang-2100.0.123.102)]",
        "server_encoding": "UTF8",
        "server_version": "18.6 (Homebrew)",
        "server_version_num": "180006",
        "target_kind": "latest",
        "wal_level": "logical"
      },
      "observed": {
        "column_count": 2,
        "connection_autocommit": true,
        "diagnostic": {
          "column_name": null,
          "constraint_name": null,
          "context": null,
          "datatype_name": null,
          "exception_type": "DuplicateColumn",
          "internal_position": null,
          "internal_query": null,
          "message_detail": null,
          "message_hint": null,
          "message_primary": "column \"id\" specified more than once",
          "schema_name": null,
          "severity": "ERROR",
          "severity_nonlocalized": "ERROR",
          "source_file": "tablecmds.c",
          "source_function": "MergeAttributes",
          "source_line": "2639",
          "sqlstate": "42701",
          "statement_position": null,
          "table_name": null,
          "text": "column \"id\" specified more than once"
        },
        "failed_status": "IDLE",
        "repair_status": "IDLE"
      },
      "assertions": [
        {
          "expected": "42701",
          "name": "42701 SQLSTATE",
          "observed": "42701",
          "passed": true
        },
        {
          "expected": "ERROR",
          "name": "42701 ERROR severity",
          "observed": "ERROR",
          "passed": true
        },
        {
          "expected": "column \"id\" specified more than once",
          "name": "42701 primary diagnostic",
          "observed": "column \"id\" specified more than once",
          "passed": true
        },
        {
          "expected": "IDLE",
          "name": "duplicate-column error leaves session usable",
          "observed": "IDLE",
          "passed": true
        },
        {
          "expected": {
            "columns": 2,
            "status": "IDLE"
          },
          "name": "unique column definitions repair table",
          "observed": {
            "columns": 2,
            "status": "IDLE"
          },
          "passed": true
        }
      ],
      "cleanup": {
        "errors": [],
        "passed": true
      },
      "result": {
        "status": "passed",
        "environment": {
          "TimeZone": "Asia/Shanghai",
          "backend_pid": 2968,
          "binary": {
            "bindir": "/opt/homebrew/Cellar/postgresql@18/18.6/bin",
            "pg_config": "/opt/homebrew/bin/pg_config",
            "pg_config_version": "PostgreSQL 18.6 (Homebrew)",
            "postgres": "/opt/homebrew/Cellar/postgresql@18/18.6/bin/postgres"
          },
          "connection_scope": "runner-owned localhost port",
          "current_user": "runner",
          "docker": {},
          "lc_messages": "C",
          "libpq_version": "18.6",
          "locale": "en_US.UTF-8",
          "log_destination": "csvlog,jsonlog",
          "log_error_verbosity": "verbose",
          "log_min_error_statement": "error",
          "log_min_messages": "error",
          "logging_collector": "on",
          "machine": "arm64",
          "max_connections": "100",
          "platform": "macOS-26.6.2-arm64-arm-64bit-Mach-O",
          "psycopg_version": "3.3.5",
          "python_version": "3.14.6 (main, Jun 10 2026, 10:03:53) [Clang 21.0.0 (clang-2100.0.123.102)]",
          "server_encoding": "UTF8",
          "server_version": "18.6 (Homebrew)",
          "server_version_num": "180006",
          "target_kind": "latest",
          "wal_level": "logical"
        },
        "cases": [
          {
            "assertions": [
              {
                "expected": "42701",
                "name": "42701 SQLSTATE",
                "observed": "42701",
                "passed": true
              },
              {
                "expected": "ERROR",
                "name": "42701 ERROR severity",
                "observed": "ERROR",
                "passed": true
              },
              {
                "expected": "column \"id\" specified more than once",
                "name": "42701 primary diagnostic",
                "observed": "column \"id\" specified more than once",
                "passed": true
              },
              {
                "expected": "IDLE",
                "name": "duplicate-column error leaves session usable",
                "observed": "IDLE",
                "passed": true
              },
              {
                "expected": {
                  "columns": 2,
                  "status": "IDLE"
                },
                "name": "unique column definitions repair table",
                "observed": {
                  "columns": 2,
                  "status": "IDLE"
                },
                "passed": true
              }
            ],
            "case_id": "duplicate_column",
            "cleanup": {
              "errors": [],
              "passed": true
            },
            "elapsed_seconds": 0.01,
            "observed": {
              "column_count": 2,
              "connection_autocommit": true,
              "diagnostic": {
                "column_name": null,
                "constraint_name": null,
                "context": null,
                "datatype_name": null,
                "exception_type": "DuplicateColumn",
                "internal_position": null,
                "internal_query": null,
                "message_detail": null,
                "message_hint": null,
                "message_primary": "column \"id\" specified more than once",
                "schema_name": null,
                "severity": "ERROR",
                "severity_nonlocalized": "ERROR",
                "source_file": "tablecmds.c",
                "source_function": "MergeAttributes",
                "source_line": "2639",
                "sqlstate": "42701",
                "statement_position": null,
                "table_name": null,
                "text": "column \"id\" specified more than once"
              },
              "failed_status": "IDLE",
              "repair_status": "IDLE"
            },
            "schema": "c42701_duplicate_column",
            "status": "passed"
          }
        ]
      }
    },
    {
      "id": "runtime.42701-syntax-pg10.pg10",
      "run_id": "42701-syntax-pg10",
      "target": "pg10",
      "status": "passed",
      "server_version": "10.21 (Debian 10.21-1.pgdg90+1)",
      "server_version_num": 100021,
      "summary_sha256": "e8485e813c64d48c0a8aaabea9e3844e2aaa28b2817f1ee04362e4a85d48213b",
      "raw_sha256": "df7ce42bcd46bac5e7e750222372f9b45ea0da1b0e97da258828b484e0ba0856",
      "case_manifest": {
        "id": "manifest.42701",
        "kind": "local_artifact",
        "source_role": "case_manifest",
        "sha256": "9f792ba437d56c9c8517dcc45582799d04c83a50180b5e290e8cc3b90c93fd7e"
      },
      "snippet_registry": {
        "id": "snippet-registry.42701",
        "kind": "local_artifact",
        "source_role": "snippet_registry",
        "sha256": "20767b2140a3242ce7450b1c3eaf0dc89b87f75fd18055d9220c8aeb2df5400f"
      },
      "environment": {
        "TimeZone": "Etc/UTC",
        "backend_pid": 80,
        "binary": {},
        "connection_scope": "runner-owned localhost port",
        "current_user": "postgres",
        "docker": {
          "architecture": "arm64",
          "command": "/usr/local/bin/docker",
          "digest": "sha256:b2baf8998630663d21370da06387c950e587071bdd307ee34e661cdcc7442bcc",
          "id": "sha256:b2baf8998630663d21370da06387c950e587071bdd307ee34e661cdcc7442bcc",
          "image": "postgres:10",
          "image_created": "2022-06-23T09:11:18.374607054Z",
          "image_ref": "postgres@sha256:b2baf8998630663d21370da06387c950e587071bdd307ee34e661cdcc7442bcc",
          "log_destination": "csvlog",
          "os": "linux",
          "repo_digests": [
            "postgres@sha256:b2baf8998630663d21370da06387c950e587071bdd307ee34e661cdcc7442bcc"
          ]
        },
        "lc_messages": "en_US.utf8",
        "libpq_version": "18.6",
        "locale": "en_US.UTF-8",
        "log_destination": "csvlog",
        "log_error_verbosity": "verbose",
        "log_min_error_statement": "error",
        "log_min_messages": "error",
        "logging_collector": "on",
        "machine": "arm64",
        "max_connections": "100",
        "platform": "macOS-26.6.2-arm64-arm-64bit-Mach-O",
        "psycopg_version": "3.3.5",
        "python_version": "3.14.6 (main, Jun 10 2026, 10:03:53) [Clang 21.0.0 (clang-2100.0.123.102)]",
        "server_encoding": "UTF8",
        "server_version": "10.21 (Debian 10.21-1.pgdg90+1)",
        "server_version_num": "100021",
        "target_kind": "pg10",
        "wal_level": "logical"
      },
      "observed": {
        "column_count": 2,
        "connection_autocommit": true,
        "diagnostic": {
          "column_name": null,
          "constraint_name": null,
          "context": null,
          "datatype_name": null,
          "exception_type": "DuplicateColumn",
          "internal_position": null,
          "internal_query": null,
          "message_detail": null,
          "message_hint": null,
          "message_primary": "column \"id\" specified more than once",
          "schema_name": null,
          "severity": "ERROR",
          "severity_nonlocalized": "ERROR",
          "source_file": "tablecmds.c",
          "source_function": "MergeAttributes",
          "source_line": "1744",
          "sqlstate": "42701",
          "statement_position": null,
          "table_name": null,
          "text": "column \"id\" specified more than once"
        },
        "failed_status": "IDLE",
        "repair_status": "IDLE"
      },
      "assertions": [
        {
          "expected": "42701",
          "name": "42701 SQLSTATE",
          "observed": "42701",
          "passed": true
        },
        {
          "expected": "ERROR",
          "name": "42701 ERROR severity",
          "observed": "ERROR",
          "passed": true
        },
        {
          "expected": "column \"id\" specified more than once",
          "name": "42701 primary diagnostic",
          "observed": "column \"id\" specified more than once",
          "passed": true
        },
        {
          "expected": "IDLE",
          "name": "duplicate-column error leaves session usable",
          "observed": "IDLE",
          "passed": true
        },
        {
          "expected": {
            "columns": 2,
            "status": "IDLE"
          },
          "name": "unique column definitions repair table",
          "observed": {
            "columns": 2,
            "status": "IDLE"
          },
          "passed": true
        }
      ],
      "cleanup": {
        "errors": [],
        "passed": true
      },
      "result": {
        "status": "passed",
        "environment": {
          "TimeZone": "Etc/UTC",
          "backend_pid": 80,
          "binary": {},
          "connection_scope": "runner-owned localhost port",
          "current_user": "postgres",
          "docker": {
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            "command": "/usr/local/bin/docker",
            "digest": "sha256:b2baf8998630663d21370da06387c950e587071bdd307ee34e661cdcc7442bcc",
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          "log_min_error_statement": "error",
          "log_min_messages": "error",
          "logging_collector": "on",
          "machine": "arm64",
          "max_connections": "100",
          "platform": "macOS-26.6.2-arm64-arm-64bit-Mach-O",
          "psycopg_version": "3.3.5",
          "python_version": "3.14.6 (main, Jun 10 2026, 10:03:53) [Clang 21.0.0 (clang-2100.0.123.102)]",
          "server_encoding": "UTF8",
          "server_version": "10.21 (Debian 10.21-1.pgdg90+1)",
          "server_version_num": "100021",
          "target_kind": "pg10",
          "wal_level": "logical"
        },
        "cases": [
          {
            "assertions": [
              {
                "expected": "42701",
                "name": "42701 SQLSTATE",
                "observed": "42701",
                "passed": true
              },
              {
                "expected": "ERROR",
                "name": "42701 ERROR severity",
                "observed": "ERROR",
                "passed": true
              },
              {
                "expected": "column \"id\" specified more than once",
                "name": "42701 primary diagnostic",
                "observed": "column \"id\" specified more than once",
                "passed": true
              },
              {
                "expected": "IDLE",
                "name": "duplicate-column error leaves session usable",
                "observed": "IDLE",
                "passed": true
              },
              {
                "expected": {
                  "columns": 2,
                  "status": "IDLE"
                },
                "name": "unique column definitions repair table",
                "observed": {
                  "columns": 2,
                  "status": "IDLE"
                },
                "passed": true
              }
            ],
            "case_id": "duplicate_column",
            "cleanup": {
              "errors": [],
              "passed": true
            },
            "elapsed_seconds": 0.019,
            "observed": {
              "column_count": 2,
              "connection_autocommit": true,
              "diagnostic": {
                "column_name": null,
                "constraint_name": null,
                "context": null,
                "datatype_name": null,
                "exception_type": "DuplicateColumn",
                "internal_position": null,
                "internal_query": null,
                "message_detail": null,
                "message_hint": null,
                "message_primary": "column \"id\" specified more than once",
                "schema_name": null,
                "severity": "ERROR",
                "severity_nonlocalized": "ERROR",
                "source_file": "tablecmds.c",
                "source_function": "MergeAttributes",
                "source_line": "1744",
                "sqlstate": "42701",
                "statement_position": null,
                "table_name": null,
                "text": "column \"id\" specified more than once"
              },
              "failed_status": "IDLE",
              "repair_status": "IDLE"
            },
            "schema": "c42701_duplicate_column",
            "status": "passed"
          }
        ]
      }
    }
  ]
}