Normalised metallicity distributions (obtained using a kernel density estimation with an Epanechnikov kernel and a smooting parameter of 0.06 dex) for stars close to the Sun (|R_⊙ − R|< 0.2 kpc, |Z|< 0.2 kpc), colour-coded by survey. The plot has been truncated at −0.7, in order to better visualise the peak of the distributions. A good agreement is found between the different surveys in the sense that they are all peaking at the same value (∼0). We note that the SEGUE distribution contains less than 100 stars (most of them K dwarfs), resulting to a noisier shape.