friendica/doc/database/db_conversation.md

Table conversation

Raw data and structure information for messages

Fields

Field	Description	Type	Null	Key	Default	Extra
item-uri	Original URI of the item - unrelated to the table with the same name	varbinary(255)	NO	PRI	NULL
reply-to-uri	URI to which this item is a reply	varbinary(255)	NO
conversation-uri	GNU Social conversation URI	varbinary(255)	NO
conversation-href	GNU Social conversation link	varbinary(255)	NO
protocol	The protocol of the item	tinyint unsigned	NO		255
direction	How the message arrived here: 1=push, 2=pull	tinyint unsigned	NO		0
source	Original source	mediumtext	YES		NULL
received	Receiving date	datetime	NO		0001-01-01 00:00:00

Indexes

Name	Fields
PRIMARY	item-uri
conversation-uri	conversation-uri
received	received

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