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b
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<<
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anyrange
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>>(anyrange,anyrange)
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>>(anyrange,anyrange)
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range_before(anyrange,anyrange)
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\u5426
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anyrange
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>>(anyrange,anyrange)
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\u5426
\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b
anyrange
\u7ed3\u679c\u7c7b\u578b
bool

\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009

\n \u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c\u7b2c\u00a038.13\u00a0\u8282\u3002\n

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\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002

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b
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<<
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range_before(anyrange,anyrange)
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\u5426
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anyrange
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>>(anyrange,anyrange)
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\u5426
\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b
anyrange
\u7ed3\u679c\u7c7b\u578b
bool

\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009

\n \u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c\u7b2c\u00a038.13\u00a0\u8282\u3002\n

\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002

\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002

\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002

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b
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<<
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range_before(anyrange,anyrange)
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>>(anyrange,anyrange)
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\u5426
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bool

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\u672a\u4f7f\u7528\u7684\u5217\u5305\u542b\u96f6\u3002\u4f8b\u5982\uff0c\u524d\u7f00\u64cd\u4f5c\u7b26\u7684 oprleft \u4e3a\u96f6\u3002

\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002

\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002

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<<
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range_before(anyrange,anyrange)
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b
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<<
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range_before(anyrange,anyrange)
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anyrange
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>>(anyrange,anyrange)
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\u5426
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anyrange
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bool

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\n \u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c\u7b2c\u00a037.14\u00a0\u8282\u3002\n

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\u67e5\u770b\u5b8c\u6574\u4e2d\u6587\u624b\u518c\u4e0e\u4e0a\u4e0b\u6587\u3002

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\u4f4d\u4e8e\u5de6\u4fa7\u3002

\u79cd\u7c7b
b
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<<
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range_before(anyrange,anyrange)
\u53ef\u7528\u4e8e\u54c8\u5e0c\u8fde\u63a5
\u5426
\u5de6\u64cd\u4f5c\u6570\u7c7b\u578b
anyrange
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>>(anyrange,anyrange)
\u53ef\u7528\u4e8e\u5f52\u5e76\u8fde\u63a5
\u5426
\u53f3\u64cd\u4f5c\u6570\u7c7b\u578b
anyrange
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bool

\u540c\u7248\u672c\u4e2d\u6587\u624b\u518c\u8282\u9009

\n \u76ee\u5f55 pg_operator \u5b58\u50a8\u5173\u4e8e\u64cd\u4f5c\u7b26\u7684\u4fe1\u606f\u3002\u8be6\u89c1 CREATE OPERATOR \u548c\u7b2c\u00a037.14\u00a0\u8282\u3002\n

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\u672c\u9875\u5f00\u5934\u7684\u4e2d\u6587\u8bf4\u660e\u4e3a PG.CENTER \u5bf9\u6e90\u7801\u8bf4\u660e\u7684\u7ffb\u8bd1\uff1b\u624b\u518c\u8282\u9009\u4fdd\u7559\u5bf9\u5e94\u7248\u672c\u4e2d\u6587\u6587\u6863\u539f\u6587\u3002\u6e90\u7801\u4fe1\u606f\u53ca\u624b\u518c\u793a\u4f8b\u4e0d\u4ee3\u8868\u91cd\u65b0\u8fdb\u884c\u8fc7\u8fd0\u884c\u6d4b\u8bd5\u3002

"}, "comparison": {"left": "17", "right": "18", "status": "unchanged", "diff": ""}}