Table.Buffer - PowerQuery M | Microsoft Learn
Sep 16, 2025 · Using this function might or might not make your queries run faster. In some cases, it can make your queries run more slowly due to the added cost of reading all the data …
Exploring Power Query Buffering: How Table.Buffer and List.Buffer …
Oct 3, 2024 · In a nutshell: Table.Buffer creates a stable copy* of a table’s rows. These rows are fetched only once from the source, regardless of how many times they are read from the …
Table.Buffer - Table Function | Power Query M
Feb 22, 2025 · Table.Buffer is a Power Query M function that buffers a table in memory, isolating it from external changes during evaluation. The function returns a buffered table with scalar …
Keep sorted table for Group By, using Table.Buffer
Just add a step that loads the sorted table into memory, and continue working with the sorted table: Now you have the result you wanted: Btw, if you don’t want to buffer the table …
New Options For The Table.Buffer Function In Power Query
Mar 20, 2022 · Consider the following M query that loads data from a CSV file with seven columns and a million rows in, and then uses Table.Buffer to buffer that table into memory:
Table.Buffer - Power Query
It forces the evaluation of any scalar cell values, but leaves non-scalar values (records, lists, tables, and so on) as-is. Note that using this function might or might not make your queries run …
Power Query: Driftless Merges using Table.Buffer
Aug 11, 2025 · Here is a side-by-side Power Query comparison showing why buffering matters. Both queries “pick” 4 rows before the merge. After the merge, the unbuffered query returns 5 …
Solved: How do I use table.buffer to speed up a query? (Ho ...
Jun 22, 2020 · I've seen a number of posts that talk about adding table.buffer to queries to speed things up. I'm pretty new to PowerBi and I'd like to try this, but I'm unclear exactly how to add …
Boost Power Query Performance: Import Large CSV Files with Table.Buffer …
Nov 27, 2025 · This article explains how to import very large CSV files with Power Query and dramatically improve refresh speed and stability by using Table.Buffer and related buffering …
excel - Power Query Tabel.Buffer Correct Use - Stack Overflow
Jan 13, 2022 · Your second query will issue another query of its own. Buffer can help if you are reusing data within the same query, like referencing the same set multiple times.