agg_token Struct Reference

Aggregate token bundling a provenance UUID with a running value. More...

#include "agg_token.h"

Public Attributes
char	tok [2 *UUID_LEN+5]
	Provenance UUID as a text string.
char	val [80]
	Aggregate running value as a text string.

Detailed Description

Aggregate token bundling a provenance UUID with a running value.

tok holds the UUID of the provenance circuit gate for the current aggregate group, formatted as a 36-character string (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx plus a NUL terminator). The buffer size 2*UUID_LEN+5 accommodates the standard UUID text representation.

val holds the textual representation of the current aggregate value (e.g., a decimal integer or floating-point number). A longer value (the text of a string_agg, an array, a multirange...) keeps its first AGG_TOKEN_PREFIX_LEN characters, and the last byte of val is set to AGG_TOKEN_TRUNCATED: the whole value is that of the gate, read by agg_token_value_cstring.

Definition at line 32 of file agg_token.h.

Member Data Documentation

tok

char agg_token::tok[2 *UUID_LEN+5]

Provenance UUID as a text string.

Definition at line 33 of file agg_token.h.

val

char agg_token::val[80]

Aggregate running value as a text string.

Definition at line 34 of file agg_token.h.

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The documentation for this struct was generated from the following file:

• /home/senellar/git/software/provsql/src/agg_token.h