message: fixed SAMPLE_CHUNK_SIZE macro
diff: #define SAMPLE_CHUNK_SIZE 100
  #if STANDARD_VECTOR_SIZE < SAMPLE_CHUNK_SIZE
  -#define SAMPLE_CHUNK_SIZE SAMPLE_CHUNK_SIZE
  +#undef SAMPLE_CHUNK_SIZE
  +#define SAMPLE_CHUNK_SIZE STANDARD_VECTOR_SIZEs
  #endif
  namespace duckdb {
  