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Comment: Key tuples

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Code Block
languagejava
titleTuple serialization (pseudocode)
for (Column col : tuple) {
	switch (col.type().spec()) {
    	case BYTE:
        	packer.packByte(tuple.byteValue(col.name()));
	        break;
	    case SHORT:
...

Key tuples

Key tuples are tuples with key columns only. Key columns always come first in the schema. So if there are 2 key columns, first two values of the tuple is the key.

Handshake


Request
4 bytesMagic number 49 47 4E 49, or "IGNI". Helps identifying misconfigured SSL or other apps probing the port.
intPayload length
intVersion major
intVersion minor
intVersion patch
intClient code (1 for JDBC, 2 for general-purpose client)
binFeatures (bitmask)
map (string → any)Extensions (auth, attributes, etc). Server can skip unknown extension data (when client is newer).

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