Snowflake: `CREATE DATABASE` and `COPY INTO` consume the `;`, so the next statement is rejected

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还没有人认领这个 Issue。

  • #2790 来自 @slopgobblercobbler —— 已关闭，未合并

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难度
3/5
预计耗时
1-2 天
新手友好度
68/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
活跃
技术栈
rust
领域
databases

调研方向

Start by comparing the Snowflake dialect parsing for CREATE DATABASE and COPY INTO with CREATE SCHEMA, which the issue says already handles a following statement. Read the changes from #1939, #1669, and #1786, and check how the open #2438 handles statement endings. Add regression cases for semicolon-separated statements and confirm both statements parse successfully.

由索引模型根据 Issue 内容生成。

描述

Prolific Author Snowflake

With SnowflakeDialect, these fail as soon as another statement follows:

CREATE DATABASE my_db; SELECT 1
  -> sql parser error: Expected: end of statement, found: SELECT at Line: 1, Column: 24
CREATE DATABASE my_db COMMENT = 'x'; SELECT 1
COPY INTO t FROM @stage; SELECT 1
  -> same error (on 0.63.0, COPY INTO gives "Expected: =, found: 1 at Line: 1, Column: 33" instead)
CREATE SCHEMA my_s; SELECT 1
  -> 2 statements (fine)

Each statement parses on its own. CREATE DATABASE my_db; SELECT 1 worked in 0.58.0 and broke in 0.59.0 (#1939); COPY INTO has done this since #1669, which fixed #1519 for a trailing ; only. Same class as #1775 (fixed in #1786). Open PR #2438 makes ->> end these statements but leaves the ; case as is.

Tested on main c45d1f4e (also 0.63.0).

Found with a property-based fuzzer (round trip and statement-separation checks); I used AI assistance for triage and verified every case above.

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