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Added a selectColumn method for finding a column by name

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This commit is contained in:
Craig Williams
2020-10-06 10:56:29 +01:00
parent 2e17d6f75f
commit abec0e5800
2 changed files with 18 additions and 0 deletions
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15
src/db_column.c
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@@ -358,4 +358,19 @@ int setColumnValue(struct column_data_t *col, uint64_t row, const char *value, s
return 0;
}
struct column_data_t *selectColumn(struct column_data_t **col_data, size_t n_cols, const char *name)
{
struct column_data_t *col = 0;
size_t idx = 0;
size_t name_len = strlen(name);
while (idx < n_cols) {
col = *(col_data + idx);
if (col->name_len == name_len && strncmp(col->name, name, name_len) == 0) {
return *(col_data + idx);
}
idx++;
}
return 0;
}

3
src/db_column.h
View File

@@ -97,4 +97,7 @@ void freeColumns(struct column_data_t **col_data, size_t n_cols);
int setColumnValue(struct column_data_t *col, uint64_t row, const char *value, size_t value_size);
struct column_data_t *selectColumn(struct column_data_t **col_data, size_t n_cols,
const char *name);
#endif // H__DB_COLUMN__