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Byte1('R')
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Identifies the message as an authentication request.

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Int32(8)
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Length of message contents in bytes, including self.

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Int32(6)
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Specifies that an SCM credentials message is required.

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\n
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Byte1('R')
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Identifies the message as an authentication request.

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Int32(8)
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Length of message contents in bytes, including self.

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\n
Int32(6)
\n
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Specifies that an SCM credentials message is required.

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\n
\n
\n
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Byte1('R')
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Identifies the message as an authentication request.

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Int32(8)
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Length of message contents in bytes, including self.

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\n
Int32(6)
\n
\n

Specifies that an SCM credentials message is required.

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\n
\n
\n
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\n
Byte1('R')
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Identifies the message as an authentication request.

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\n
Int32(8)
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Length of message contents in bytes, including self.

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\n
Int32(6)
\n
\n

Specifies that an SCM credentials message is required.

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\n
\n
\n
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\n
Byte1('R')
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Identifies the message as an authentication request.

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\n
Int32(8)
\n
\n

Length of message contents in bytes, including self.

\n
\n
Int32(6)
\n
\n

Specifies that an SCM credentials message is required.

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\n
\n
\n
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\n
\n
\n
Byte1('R')
\n
\n

Identifies the message as an authentication request.

\n
\n
Int32(8)
\n
\n

Length of message contents in bytes, including self.

\n
\n
Int32(6)
\n
\n

Specifies that an SCM credentials message is required.

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\n
\n
\n
", "manual_path": "/docs/15/protocol-message-formats.html", "comparison_data": {"fields": [{"format": "Byte1('R')", "description": "Identifies the message as an authentication request."}, {"format": "Int32(8)", "description": "Length of message contents in bytes, including self."}, {"format": "Int32(6)", "description": "Specifies that an SCM credentials message is required."}], "direction": "B"}, "comparison_hash": "d00341798abc326773340cfed67c435986e73d8f28aa7b4391acd70df2f989fc"}}}, "snapshot": null, "comparison": {"left": "15", "right": "16", "status": "removed", "diff": "--- PostgreSQL 15\n+++ PostgreSQL 16\n@@ -1,17 +1 @@\n-{\n- \"direction\": \"B\",\n- \"fields\": [\n- {\n- \"description\": \"Identifies the message as an authentication request.\",\n- \"format\": \"Byte1('R')\"\n- },\n- {\n- \"description\": \"Length of message contents in bytes, including self.\",\n- \"format\": \"Int32(8)\"\n- },\n- {\n- \"description\": \"Specifies that an SCM credentials message is required.\",\n- \"format\": \"Int32(6)\"\n- }\n- ]\n-}\n+Not recorded in this version"}}